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Old 10-19-2012, 06:42 AM
richschneid richschneid is offline
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Location: Pittsburgh, Pa.
 
Join Date: Nov 2005
Posts: 1,580
Mein Auto: BMW 550i xDrive
About 10 years ago Car and Driver tested various cars about the accuracy of the speedometer readings. BMW was by far the most consistently optimistic speedometer reading. I have had five BMWs since 1992. Each one has had about he same error in the speedometer. At highway speeds the speedometer is usually about 3mph over the actual speed. I think the error is a percentage, so that the faster the car is going the larger the speedo error.
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550i xDrive/ImperialBlue/Beige/anthracite/DHP/sport/vent seats/convience/cold weather/driver assistance/prem 2/sport trans/fold down rears/4 zone/ACC/HUD/cameras/night vision/ipod and smart integration.
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