Gloabally you're right - they do this for obvious safety and other
reasons.
Yet, it depends on the model of car you're driving, and on the tires
that equip it (snow/rain/summer).
I usually benchmark my speedometer using the GPS.
One of our cars is amazingly accurate with summer tires, whatever the
speed - tested from 10 up to 180 km/h on German motorways.
Smaller cars tend to lie a lot - good for the ego the younger
generations,
and less dangerous for the other vehicles ;-)
Ph
Le 17 janv. 13 à 11:37, Wayne Harridge a écrit :
>> From my experience the speedometers in most cars are optimistic,
>> i.e. they
> indicate a higher speed than you are actually travelling.
>
> ...Wayne
>
>
>>
>> Hmmm, I disagree, Chuck. You drive at your speed limit and you'll be
> fine*.
>> The only excuse for being caught speeding is that you did not know
>> the
> limit
>> (as with changing limits on that stretch of road in Florida). I
>> was last
> caught
>> speeding on a stretch of road where the limit went down to 50mph
>> without
>> my knowledge. But then that was my fault for not noticing the signs.
>>
>> I have no sympathy for speeders, myself included. I have even less
>> sympathy for people who slow for speed cameras, to well below the
>> limit,
>> then accelerate once past the camera.
>>
>> Chris
>> * In the UK your speedometer is assumed to be accurate within 10% at
>> 30mph. I have taken this to mean 10% at 70mph as well . . .
>>
>
>
> --
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