Speedometer 7-9% wrong
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My car reads 4 mph faster than reality at every speed. Tested with 2 different GPS units and it is consistently reading exactly 4 mph fast. I guess that means my miles on the odometer are actually higher than what has been driven, right?
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Mine is 3-4mph off as well at all speeds, verified with 2 different GPS units. On a car this expensive, it pisses me off. My girlfriend's sunfire that is worth all of $700 manages to get the speed right, why can't my $130k Porsche? If I drive an average of 50mph on all my driving, then that's 6-8% mroe miles on the car than I've actually driven. I reallize all our cars seem to do it, but that doesn't make it ok; its annoying to always have to subtract the speed in my head 3-4 mph each time I see a cop and make sure I"m within 5mph of the speed limit.
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Mine is : ( all MPH )
GPS reads 30......Car reads 35
GPS reads 50...... Car reads 53
GPS reads 70.......Car reads 71
GPS reads 80.......Car reads 78
So under 70 it reads Fast and over it stars to read slow. Any faster readings and I plead the 5th amendment.
Frank
GPS reads 30......Car reads 35
GPS reads 50...... Car reads 53
GPS reads 70.......Car reads 71
GPS reads 80.......Car reads 78
So under 70 it reads Fast and over it stars to read slow. Any faster readings and I plead the 5th amendment.
Frank
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