Showing posts with label cars. Show all posts
Showing posts with label cars. Show all posts

Sunday, June 16, 2024

Car design trends that I wish would go away

 Here are some car design trends that have seem to have taken over the auto industry that I wish would go away.  They help with neither usability nor aesthetics.

  • Use of piano black in the interior.  These show fingerprints and dust very prominently and are also prone to being scratched and showing those scratches.  Use matte black or wood instead.
  • Use of shiny chrome in the interior.  This reflects light and in some situations can be downright uncomfortable for the driver.  Use brushed aluminum instead.
  • Ever larger wheels.  16" or 17" wheels on a sedan of any size should be good enough.  On an SUV 18" or 19" should be the most needed.  Larger wheels have tires with smaller sidewalls and make the ride uncomfortable especially given the pothole-ridden roads we have nowadays.  Bigger wheels and tires weigh more (lower mpg and slower acceleration), and they cost more to replace.  It's insane that we now have cars with 18" or 19" wheels and SUVs with 20" to 22" wheels. 
  • Excessive use of screens and touchscreens.  It's OK to have one small one for navigation and infotainment, but why put things like climate control in there?  Why have a complicated digital dash controlled by complicated steering wheel controls when a simple one will get the job done?  Would really appreciate physical controls for the climate control.  Most of these screens have flicker, sometimes excessive flicker.  There is now a trend of having screens on the passenger side (seen in the newer cars from MB, BMW, and Audi).
  • Uncomfortable seats with poor padding.  Many newer cars seem to have extra firm seats with worse seat comfort than the corresponding previous generation.  It almost mandates using a separate seat cushion to get adequate comfort during long drives.
  • Use of run flat tires.  These are noisier to begin with and get even noisier and harder as they age.  This makes them very uncomfortable especially on bad roads.  They are also heavier so getting rid of the spare doesn't save much weight, if any, once you have all the extra weight of run flat tires. Finally, they are more expensive to replace and it greatly reduces the number of choices available.  I really wish they'd stick with regular tires and a compact or full size spare.
  • White LED headlights.  The color temperature of most headlights nowadays is too high and will tend to cause fatigue and lead to difficulty falling asleep after one has been driving at night.  A warmer color temperature that matches regular halogen headlights would be better.
  • Plastic trim around wheel wells. For some reason car makers decided to stop painting these and expose black plastic which fades and looks horrible over time.
  • Crazy wheel designs.  What was wrong with the single color 5-spoke, 7-spoke, and multi-spoke wheels of the from the 90's to the early 10's?  Now we have the busiest wheel designs with all kinds of jagged and incoherent geometric patterns, often in black/dark grey/silver combinations.
  • Dropping the logo on the rear and spelling out the brand.  I think the logo looks cleaner.

Thursday, January 17, 2019

2019 Acura RDX Tech SH-AWD review

Here's a brief review of the 2019 Acura RDX with the Technology Package and SH-AWD.  I was mostly drawn to the car for its seat comfort.  The Technology Package is one level above the base model.  I chose it mainly because I wanted parking sensors and leather seats.  Otherwise, the base model would have been adequate.

Features I like:
  • Seat comfort.
  • Headlight intensity -- illuminates the road very well.
  • Quality of materials.
  • Interior and exterior design.
  • NSX inspired shifter/center console.
  • Steering, handling, power.
  • Ride comfort.
  • Cap-less fuel filler.
  • Option to automatically reset trip computer on refuel.
Features that are OK but that could be improved:
  • The padding in the seat pan could be better so that it removes pressure from the low back.  Look at Volvo and Tesla, for example.
  • Gauges could be made less busy.  No need for km/hr and mph at the same time in a digital speedometer.
  • When switching between displays in the center, it would be better if they didn't shrink, then switch back to normal size after a delay.  And re-do the information to be less wordy.
  • Better ambient lighting.  Map lights feel underpowered.
  • Change to a touchscreen infotainment.  Existing setup is prone to hunting unless you look at the screen and at the touch pad, which means we're not paying attention to the road.
  • Better implementation of rear camera.  Currently unusable in rain, leave camera on for a few seconds when switching from R to D, more accurate guidelines (lines don't match up with the where the car's wheels are).  (Advance trim would help with rain since it has a camera washer.)
  • Move the BSI (blind spot indication) from the A pillars to the mirrors.
  • Road departure warning is overly sensitive, especially on internal roads.
  • Lane keep assist doesn't work very well.  It keeps asking for the driver to take control.
  • Lane departure warning is too sensitive and keeps buzzing even when within the lane.  I was forced to disable it.
  • Quality control issues.  Several rattles and issues with the audio system.
  • Interior could be quieter.  I registered 90+ dB on the highway using the Decibel X app on my iPhone.   The quietest cars register somewhere in the mid 60's.  (Advance trim would help since it has acoustic side glass.)
  • MPG. Fortunately gas prices are muted and will likely remain that way as more cars switch to hybrid/electric drivetrains.
  • No way to turn the headlights off when the car is moving in the evening.
  • The chrome pieces on the steering wheel, but especially on the center stack, can sometimes, depending on how the sun is hitting it, reflect blinding light directly into the driver's eyes.  Should be replaced with something non-reflective.
  • Rear visibility, especially the sides is very poor.
  • The parking sensors don't extend to the sides of the bumpers and only warn about objects directly in front of or behind the car.
  • Software updates are over the air, but map updates must be done via USB and the upgrade process is kludgy and prone to failure, causing a lot of frustration.  I discovered that the system doesn't like the USB drive to be larger than 64GB, and that is must not be a Sandisk!
  • OEM tires are noisy.
Tip: When you're on a call, the multi-information and navigation displays are covered by a message saying "call in progress".  To be able to view the displays, one has to hit the "back" button on the steering wheel.  Without that, it is not possible to view the trip computer or miles remaining, nor is it possible to view the map or access the navigation.

Problems I have had with the car
  • Crackling speakers: Intermittent problem that I noticed since the car was new.  Not fixed.
  • Squeaky tailgate: Happened around 5000 miles.  Fixed under warranty.
  • Whistling when engine starts or shuts: Happened around 7000 miles.  Fixed under warranty TSB.
  • Infotainment will prompt for update even though no update is available.  Fixed in D1.2.1.
  • Rubber lining near the tailgate lock has a gap.  Fixed under warranty by adjusting the lining.
  • Ticking sound when starting the engine.  Intermittent problem.  Fixed under warranty by adjusting the PCM bracket.
  • Numerous rattles all over the interior started to appear after about a year.  Not fixed.
  • When starting on a trip from home the infotainment system booted up and threw an error "Unfortunately, AcuraLauncher has stopped".  Did not happen again on the return trip.  Not fixed.
  • Received recall notice from Acura to replace the fuel pump motor.
  • Clock doesn't automatically adjust for daylight savings even though all clock settings are auto (detect time zone, set time, etc.).  Fixed by changing to manual mode for settings and, after some time, switching back to auto.  (Update: Continuing to occasionally see problems with the clock being off by an hour.)
  • Intermittently started to get a warning for "Drive mode change unavailable" at the bottom of the infotainment display.  Not fixed.
  • Parking sensors are being triggered in rain without any reason.  See video.  Not yet fixed.
  • Transmission got stuck in gear one day.  It wouldn't change gears and I had high revs and unable to gain speed.  Turning off the car reset the problem and when I took it to the dealer they were unable to reproduce it or find any error codes.  Not fixed.
  • Had a leaking rear shock that made a creaking sound when going over bumps.  This was at around 45K miles.  It was replaced under the extended warranty that I had purchased.
2023 RDX

In March 2023, I decided to trade the 2019 in and get the exact same car except the 2023.  There were several improvements I noticed which I will write about later.

So far, I have had the following problems with the 2023:
  • Squeaky brakes when backing up.  Not fixed.
  • A failed transmission when the car had a few thousand miles.  The symptom was whistling noise at highway speeds.  Replaced under warranty.  
  • AIS stopped engaging at around 30K miles.  Battery was replaced under warranty.  However, AIS still would not engage.  Not fixed.
  • At around 33K miles, time in the infotainment would always reset to 4:00 at startup and start counting from there.  Location in GPS always showed car parked at home.  Infotainment unit was replaced.  As a side benefit I got full wide-screen Apple CarPlay immediately following the replacement.
  • Oil leak at 41k fixed under warranty.
  • At 44K miles, same infotainment failure that happened at 33L miles.  Infotainment unit replaced again.  But pairing isn't working right after the replacement.
  • At 44K miles, the air vent for the driver footwell would only blow cold air regardless of HVAC temp setting.  Took it in and they found that a motor had failed.
Additional Info

Monday, December 10, 2018

BMW E46 -- The last of the ultimate driving machines

I first was introduced to the BMW brand on a trip to Germany in the summer of 1997 where I had the chance to drive an E36 316i part of the way from Munich to Berlin and back.  It had a puny 1.6 liter 4 cylinder rated at 101 hp.  It had cloth seats and manual rear windows and climate control.  The car felt great around town and handled superbly at high speeds on the autobahn.

By the end of that year, I was looking at replacing my then aging 1988 Nissan Sentra and looked getting a an E36 318ti which was the lowest spec BMW available in the US at the time.  I decided it would be too expensive for me, so I passed on it and I decided to get a 1998 Honda Civic EX instead.  The Civic was a fun car by itself but it was no BMW.

Five years later, at the end of 2002, after the Civic was damaged in an accident and declared a total loss, I decided to get a 2003 E46 325i.  This was the lowest spec BMW available in the US at the time.  I placed an order for the car in October 2002.  I ordered the base car with only a moonroof as an added option--I didn't care about luxury, but I knew it would feel a lot better than the Civic even in its base trim.  The car arrived in December 2002.  I drove that car for almost 11 years putting more than 211000 miles on it.  It was a simple car.  It was the most fun car I have owned.  I loved the design inside and out.  It was ergonomically and aesthetically perfect.  I knew somebody had sweated every little detail that brought this car together.

I don't track cars and I'm not motivated by speed or 0-60 times.  Nor am I a technophile so I don't care about cameras, heads up displays, autonomous driving capabilities, and other such gizmos.  In fact, I'd go so far as to say that I am a technophobe.  I prefer less technology because it means fewer things that can go wrong.   What did I like about the E46?  Let's start with the engine--it was a 2.5 liter inline 6 naturally aspirated engine that was silky smooth.  It made me smile every time I turned the ignition and heard it come to life.  While driving, the car emitted a wonderful exhaust note and the naturally aspirated engine offered linear acceleration.  The steering allowed the driver to feel the pavement as the car was being driven.  The suspension kept the car planted with a feeling like it was on rails while at the same time cushioning bumps.  Between the engine note, steering feel, and suspension tuning, this car felt special even crawling around at 10 mph in a parking lot.  On the highway it offered a planted feel no matter the speed.  It made me feel confident almost begging me to push the car harder.  Likewise when driving on winding roads--I could take curves much faster than I thought I could.  In fact, the sales guy had warned me at the time of taking delivery "Be careful.  If you don't watch the speedometer, you will get tickets.  It is very easy to speed in this car."  He was right.

And there were other aspects of the car like the full size spare in an era where almost all manufacturers were offering a compact spare.

E90 -- Polarizing styling but still drives like the ultimate driver

The E46 was succeeded by the E90.  By then BMWs had been subject to polarizing styling by Chris Bangle.  Both the exterior and the interior were impacted.  The interior lost its ergonomics with the center console no longer tilted towards the driver.  The cupholders were flimsy pop-outs.  The gauge cluster lost its coolant temperature gauge.

But all of these design flaws were forgotten once you got behind the wheel.  The sublime inline six, the steering feel, and the suspension were all intact with this generation.  The only thing that BMW meddled with from a driving dynamics standpoint was the introduction of run-flat tires.  This was premature on BMW's part.  While the goal was noble -- to have tires you could drive on even with zero tire pressure to get to safety in times of a flat -- the technology wasn't ready.  The first and even second generation of run-flats were too harsh and too noisy.  (BMW's best driving cars, like the M3, continued to offer regular, go flat tires.)  This made the uninformed customer incorrectly think that BMW's suspension was too harsh.  Word in BMW forums was "swap out the run flats, and you have a car that drives like a BMW should."

Also in terms of specs, when the E90 was introduced, it was a better car in every way than the E46 that it replaced, with the exception of size and weight.  For example, BMW went from offering a 10-speaker audio system that was standard in the E46 to a 12-speaker system that was standard in the E90.

E90 de-contenting

Starting around 2009, BMW started de-contenting their E90s.  A number of features were silently removed.  Many enthusiasts who thought they were getting a similar car to their older E90 were disappointed to find many missing features.  In some cases were able to get BMW to buy the car back because it fell so far short of their expectation.  A few examples of the de-contenting -- The stereo system went from 12 speakers to 6.  The flashlight in the glove box was gone.  The storage nets behind the front seats was removed.  The pad under the hood was removed.  While BMW had, in the past, provided extremely detailed specs for every aspect of the car, they no longer provided that information.  In fact, it even became hard to get an answer for "how many speakers does the car have" even from the dealer!

This is perhaps the biggest reason I decided to forego the E90 and just kept maintaining my E46 even though it was very expensive to do so as the miles kept climbing beyond 150,000.

F30 -- The ultimate marketing machine

The F30 had a rushed introduction.  Instead of the normal 7 year cycle, the E90 had a shorter, 6 year run, with the F30 being introduced a year early as a MY2012 car in early 2012.  The car was the polar opposite of the E90.  The design was gorgeous inside and out but it had none of the driving attributes of a BMW.  The engine was a turbo 4 with an uninspiring exhaust note.  The engine was responsive, but being a turbo it lost its linear power delivery and offered more of a slingshot feel.  The steering was an electric power steering that was more numb than even a pedestrian Honda.  The suspension was either too floaty (giving the driver a feeling of bouncing at highway speeds) or too hard (sending shocks up the spine at even the mildest of imperfections) and had completely lost its planted, "riding on rails" feeling.  The run-flats carried over from the E90, but they were improved 2nd generation run-flats and rode a little less harsh.  In terms of driving dynamics, the only thing that remained from BMW DNA was the rear wheel drive and near 50:50 balance.  The car could be packed to the gills with technology and BMW would charge an arm and a leg for it.  Their implementation of technology is good, but nothing special compared to that offered by other luxury marques.

BMW had a whole bunch of ads touting it to be the ultimate driving machine.  I think of it as the ultimate marketing machine.  I fell for it.  I owned 2 of them.  First a no line which cause me severe buyers remorse but which BMW bought back because of recurring problems.  Then an M-sport which I hoped would provide an improved driving experience, which it did compared to the no line car, but was still no match for the E46 and E90 in terms of steering and suspension.

I finally realized BMW had changed from building a car that excites to building a car purely for profit while capitalizing on their brand.   I am no longer a BMW owner and probably never will be.  I find their recent styling borders on gaudy, flashy, and gimmicky.  There are many better choices for the enthusiast now, e.g. the Alfa Romeo Giulia or the Jaguar XE.  In a recent comparo by Motortrend magazine, the F30 placed 7th out of 8 cars tested.  This from a car that simply could not be beat year after year no matter how hard the competition tried.

Their most recent car designs border on gaudy.

Wednesday, April 11, 2018

On cars with autopilot

I'm writing this post in the context of the recent Tesla Model X crash.  But there have been other failures of the autopilot here, here, and here.

Cars with autopilot normally require the driver to be able to take over when the car malfunctions or is unable to function, whether or not the car is able to alert the driver.  This is a system that is designed backwards.

Let me explain what I mean by starting with driver-assist technologies such as lane departure warning and pedestrian detection, where the driver does most of the work, but is assisted by the car.

Machine watching human ==> Great idea

Having a machine watch over a human and assist when needed is great idea.  Why?  A machine never tires of doing the same thing (monitoring conditions and making sure the human driver is doing the right thing).  Examples of these are technologies such as lane departure warning, pedestrian detection, alertness detection.  Should these fail, the human is still responsible, because the human was supposed to be alert and watching for these problems anyway.  The computer may help step in and save the day should the human make an error.

Now let's look at the flip side where we have autopilot.  Here most of the work is done by the car with the human expected to take over when things go wrong.

Human watching machine ==> Bad idea

Have a human waiting to take over when machine makes a mistake is a bad idea.  Why?  Humans have a really short attention span.  Unless we are totally involved in a certain task, our minds tend to wander off into the boonies and often times even audio or visual alerts may take a while to get our attention.  That's because we learn to tune out external stimuli when we are engrossed in something.  This is why autopilot systems should never be sold unless the car is capable of controlling itself in all situations including the event of total system failure without any input from the user.  Whoever designed this system expecting the human to be able to take over in any reasonable amount of time doesn't understand how the human mind works.

Autopilot in airplanes

Let's talk about autopilot in airplanes which has been around for years.  There are many cases where airline pilots fall asleep when the plane is on autopilot.
More than half of pilots have fallen asleep while in charge of a plane, a survey by a pilots' union suggests. 
Of the 56% who admitted sleeping, 29% told Balpa that they had woken up to find the other pilot asleep as well.
Fortunately, there have not been any fatalities due to that.  I should note that, with airline pilots, these folks receive training and are paid to stay alert watching the machine and they are unable to do so.

Back to cars

How many users actually go through a training for using the autopilot systems in cars that gives them experience with the various ways in which the system can fail and the consequences of those failures?

Just because we say "the driver should be fully engaged even when autopilot is in use" doesn't mean the driver will actually be able to do so.  Further, as mentioned in this article, there are situations where the car would fail to alert the driver altogether which means a driver has to be 100% engaged during autopilot use, and yet that is not realistic given how the human mind works.

So with Tesla putting full responsibility on the driver, Tesla is marketing a car with an autopilot feature but in reality they are having the driver pay Tesla to be a beta tester of their autonomous driving technology.

Saturday, April 15, 2017

BMWCCA Car Control Clinic

Last year in May, I attended a day-long BMWCCA Car Control Clinic held at Monterey Bay.  The CCC is an event that is geared toward teaching one about how to drive safely by understanding the capabilities of the car and vehicle dynamics such as weight transfer.  I have been to driving events before, but I thought this one was the most thorough.  One is required to take this class before being allowed to participate in higher speed events.  The cost of attending the CCC is very modest (< $100) since one is using one's own car and all of the instructors are unpaid volunteers.  It is a low speed event (max speed < 30 mph), so the wear and tear on the car is not too bad.

The event was held in the parking lot of the Marina airport which provided for a large open area.  We were told to push the car as hard as we could since the worst that would happen would be skidding out of control and hitting a cone.

The details of the exercises are described in this document.

It was raining most of the day of the event, and the event happens rain or shine.  The day started with an inspection of the car.  They didn't really do as detailed of a check as is described in the document.  What they did was a cursory check of the engine bay and then just asked about tire pressures.

Next, there was instruction about seating position (pedal reach, steering reach, seat height), position of the hands on the steering wheel and how to move the hands when turning, and adjusting mirrors.

We then had a bunch of exercises as described in the document above--braking, avoidance, skidpad, and slalom.  During the exercises, we were accompanied by one or more instructors that would make observations about our driving and coach us to do the right thing.  Despite prodding from the instructor, I didn't push the car hard enough to hit my personal limits, so I didn't hit any cones and I didn't skid out of control.

Wednesday, January 23, 2013

Resources for buying a car

This post is a collection of resources that I've found to be useful for buying new cars.  Because I tend to research things endlessly, I figure I might as well put all of my findings in one place.  One significant issue that I have no experience with is leasing, so that is not addressed.

Let's begin with the first question.

How much car can I afford?

A question that immediately comes to mind when thinking of a car purchase is "how much can I afford?"  Some people think it's as simple as having sufficient savings to pay cash for the car, while others look at it as the ability to afford the monthly payment of financing the car.  Yet others will say "If you have to ask, then you can't afford it."  I see this as a personal decision because people do their financial planning differently (some prefer to be more conservative than others), but here are a couple of resources that I have found useful.

Bankrate.com has an article titled "How much car can you afford?", which states:
How much should you spend on a new car? Not more than 20 percent of monthly income, say experts. "This includes payments on all the cars you may own, whether you have one vehicle or six," says Karl Brauer, editor-in-chief at Edmunds.com. "And we're talking about your take-home pay, not your gross income."
They do have some exceptions to the rule which are stated in the article.  But it also leaves some open questions:
  • Does this rule assume that the car is being financed?  Or leased?
  • Does it include maintenance costs and the cost of insurance?
Another respected name in the financial planning world, Dave Ramsey, in response to a similar question, says:
The total value of all of your vehicles—things with a motor in them—should not be more than half of your annual income.
Again, there are some open questions:
  • Is he talking about pre-tax or post-tax income?
Which leads us to the second question.

What is the cost of owning and operating the car?

While purchase price is one factor, cars that are more expensive to purchase are often more expensive to maintain as well.  For this, we can get some guidance from Edmunds.com's True Cost to Own (TCO) calculator.
And now there is a new tool that reveals the hidden costs -- all the costs -- associated with buying, owning and operating a car over a five-year-period.
There are some issues with the calculator.
  • It assumes you're looking for ownership over 5 years.  If you own for less, it will probably cost more per year than the 5 year number.  Conversely, if you own for longer than 5 years, it will cost you less per year than the 5 year number.
  • It assumes that the car will be driven 15,000 miles a year.  Most will drive more or less than that number, and some, significantly so.
  • It assumes that the car is being financed, but there is no mention of the interest rate.  If purchasing with cash, one can get rid of the finance charge.  (But there is still some loss of income since the money would have been earning interest in a savings account.)
Yet, it is useful for getting a ballpark figure for what it would cost to own the car.  Even though some manufacturers offer free maintenance, they don't cover the cost of tires.  And tires on high-performance cars wear out pretty quickly and are more expensive to replace than tires for regular cars.

The tool also has the capability to price the car with options.

So let's take an example.  Running the calculator for a 2012 Honda Civic DX sedan with an automatic transmission, we find that the purchase price of the car is $16,924, but the total cost of ownership over a 5 year period, 15,000 miles a year is $37,113.














This gives an average annual ownership cost of $7,422.60.

Putting it all together

Now that we have the annual true cost of ownership of the car, we can decide what percentage of income we're willing to spend on the car (which in turn would depend on several factors such as the number of cars in the household, other debt/obligations, etc.) and decide whether or not we can afford it.

The purchase process

There are a couple of websites that will allow you to build the car and price it with options.  These sites also provide the "true market value" (TMV) which is the average price people in a certain area have paid for that car.  This can be useful for knowing what would be a reasonable price to pay for the car.

Edmunds: This site provides the ability to get quotes for the car and contact dealers that are willing to offer it at that price on your behalf.  From the homepage, click New Cars, scroll down and select a make, then select the year and the model, and that will take you to the page where you can price the car with options.  It provides the invoice price, MSRP, and TMV.

KBB: Offers a pricing tool that is similar to Edmunds.

Truecar: A number of banks, credit unions, credit card companies, wholesale clubs (e.g. Costco), and AAA offer a car buying program where they provide one with a quote and contact participating dealers on one's behalf.  Most of these are offered through Truecar.
The quotes and dealer(s) contact are offered with no obligation, so it's always OK to walk away if a dealer doesn't honor the price that was quoted by the website, or if you can find a better deal elsewhere.

Extended warranties

Most cars come with a bumper-to-bumper warranty for some period of time -- usually 3 yrs/36000 miles, while luxury cars come with a longer warranty of 4 yrs/50,0000 miles.  Whether or not an extended warranty makes sense depends on the reliability history of the brand/car.  I've always purchased extended warranties on my cars, but I wait till I'm close to the end of the factory warranty to get it.  Here are a few things that I have found helpful:
  • Wait until close to the expiration of original warranty.  It may be wasted money if one decides, for whatever reason, to get rid of the car while it's under the original warranty, or if the car is totaled in an accident.
  • Get the extended warranty by the manufacturer of the vehicle.  Normally, the dealer tries to push other third-party extended warranties, but I stay away from those.
  • Pay attention to any exclusions.  The last warranty that I bought specifically excluded the radio/CD player and navigation.  My car didn't have navigation so the latter wasn't an issue, and fortunately I didn't have any issues with radio/CD player.
  • Shop around by calling several dealers.  Often, it is possible to buy these remotely by just sending in recently used key (many car keys contain information about the mileage of the vehicle), so there is no need to limit yourself to dealers that are close by.  Prices can vary quite significantly.  Usually, you'll be dealing with someone in the finance department at the dealership rather than a regular car salesperson.
Prepaid service plans

Some manufactures offer service plans for the car.  Sometimes the service plan is already included in the cost of the vehicle; e.g. as of this writing, all BMW come with prepaid service for 4 yrs/50,000 miles.  Other manufacturers may offer pre-paid service for an extra charge.  Some things to check on about these plans are:
  • Do they cover all wear and tear items (e.g. brakes and wiper blades) or do they just cover scheduled maintenance items.
  • How long is the plan valid for?
  • If the car comes with a prepaid service plan, can an extended service plan be purchased?
  • If the car comes with a prepaid service plan, wait until close to the expiration of original plan.  Otherwise, it may be wasted money if one decides, for whatever reason, to get rid of the car while it's under the original plan.
  • Shop around by calling several dealers.  Often, it is possible to buy these remotely by just sending in recently used key (many car keys contain information about the mileage of the vehicle), so there is no need to limit yourself to dealers that are close by.  Prices can vary quite significantly.  Usually, you'll be dealing with someone in the finance department at the dealership rather than a regular car salesperson.
Wheel and tire insurance

Some car manufacturers offer wheel and tire insurance plans.  Depending on the type of car, these could make sense.  Car with low profile tires, run flat tires, and large rims (18" or 19") are especially prone to being damaged by hitting potholes or curbs.  And they are usually very expensive to replace.

Other add ons

Many dealers try to sell other add ons such as paint protection or fabric protection.  Personally, I don't think these are worth it, especially if it's not something that is coming from the vehicle manufacturer.

A few more inputs for the decision process

Thursday, July 12, 2012

New car smell

On a similar lines to an earlier post in which I discussed "new home smell", new cars tend to go through off-gassing as well because of the materials used in their construction. The July/August 2012 issue of VIA magazine from AAA discusses this topic in an article titled What is "new car smell"?
We all know it when we smell it, but what exactly is it? Turns out it’s a chemical cocktail produced by new materials—such as vinyl, adhesives, sealers, and paints—that give off fumes for six months to a year.
A recent study by scientists at Japan’s Osaka Prefectural Institute of Public Health identified 275 chemicals in car interiors. While some, such as benzene, are known carcinogens, the levels of these compounds found in car interiors have not been conclusively linked to serious illnesses.
All the same, to minimize any potential ill effects, experts recommend ventilating a new car by opening doors and windows five minutes before entering, and keeping the car out of the sun, since heat intensifies that new car smell.
Even among car manufacturers, awareness of this aspect is growing and they are gradually moving towards more environmentally friendly materials that are also recyclable.

Tuesday, May 8, 2012

Adjusting the mirrors in your car for optimum visibility

Many years ago, I came across a posting in one of the automobile newsgroups that I found very useful.  I have since always used this to adjust the mirrors in a car when I first get into it.  It's somewhat counter to what one would be inclined to do, since it requires adjusting the side view mirrors to see just beyond the sides of the vehicle.  I don't recall the original source or I would have credited it.  Here's the piece.
It's all done with mirrors. An important part of safe driving is knowing what is around you at all times. However, if your side-view mirrors are not set correctly, you might experience blind spots. Here are three suggestions for a clear view: 
Step 1: Adjust your inside rear-view mirror to reflect the entire rear window. At night, if you don't have an auto-dimming mirror, use the mirror angle switch to eliminate headlight glare. 
Step 2: While resting your head on the left window, adjust the left side-view mirror so you can see just beyond the car's left side. 
Step 3: Align your head under the rear-view mirror, then adjust the right side-view mirror so you can see just beyond your car's right side. 
Follow these simple instructions to see your way clear in all types of traffic, night and day!
Once the mirrors have been set in this way, a car approaching from behind will first appear in the rear-view mirror, and before it disappears from the rear-view mirror it will appear in the side-view mirror, and before it disappears from the side-view mirror it will be in the driver's peripheral vision.

Here is a video explaining this procedure and demonstrating how it works.  And here is a picture from Car and Driver showing how it works.

Aspherical mirrors

I have tried adjusting the driver's side mirror in several Mercedes Benz cars and have found that it is impossible to adjust the driver's side mirror according to these instructions.  One possible solution to that would be buy and install aspherical mirrors.  As of this writing, aspherical mirrors are not available in the US, but they can be purchased from European dealers.

Sunday, October 9, 2011

Cars that drive themselves

A few months ago, the Stanford Center for Professional Development sent out an email about a webinar on Design Thinking and the Car of the Future. The webinar by itself is interesting because it discusses innovation in what is considered to be a fairly mature field, but what I found really fascinating was the video of the car that was the result of their work.

This first video shows a self-driven car creating Audi's 4-ring logo in the sand.



The second one is a follow on and shows the climb to Pikes Peak.



We've all heard of cars that can parallel-park themselves, but the reason I found this fascinating was that it brings complete automation to high-performance driving. It makes it clear that the day is not too far when we'll be able to get in a car, program a destination, and have the car drive us there. And in sporty fashion if we so desire.

This could have interesting implications for the world of auto racing. Perhaps in the future, cars will race in competition using computer algorithms instead of drivers.

Update 02/21/13 - Commerically viable autonomous cars?

Just received a related piece of information from IEEE Spectrum -- UK unveils 'affordable' self-driving RobotCar.  Researchers in the UK are attempting to build a self-driving car that will add just $150 to the cost of the base car.

Update 07/10/13 - Smart cars getting hacked

Car with more smarts bring with them another problem -- that of being hacked.  This poses problems in two areas -- break-ins and taking over of the driving controls.  You can read more about these risks in these articles:
Update 5/28/14 - Google's self-driving car

Google blog recently posted the following article -- Just press go: designing a self-driving vehicle.

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