The inaccuracy of the speedometers used by most vehicles, even those in cars with the coolest gauge clusters, is well known. The good news is that most speedometers report speeds higher than the ...

The average car speedometer may be off by a few mph There are several GPS and 3rd party apps that show your actual speed The speedometer, of course, tells you how fast or slow your car is moving when ...

Can you trust your speedometer? Yeah, weird question. But maybe not so strange if you get a speeding ticket you thought you didn't earn. Basic speedometers show a hand that will raise or lower, to the ...