Another question would also be what’s the difference between wheel speed and vehicle speed?
In: 620
u/Vast-Combination4046 explains it very well.
Race cars use pitot tubes, same as airplanes. This measures the speed of the chassis going through the air, rather than the number of times your wheel is rotating per minute. Advantage of such a system is that it shows your true speed even if your tire is slipping. Disadvantage is that it has to be recalibrated for every air pressure and humidity setting – easy for a race, not so much for your daily driver.
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