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 ...

Here's how car speedometers calculate how fast your vehicle is going. And here's why they may not always be accurate.

Modern cars surround drivers with digital certainty, yet one of the most basic numbers on the dashboard is quietly biased in your favor. The speedometer is designed to err on the side of reading high, ...

Add Yahoo as a preferred source to see more of our stories on Google. I drive a SsangYong Musso, and the speedometer consistently reads a few miles per hour above my satnav. I have always believed ...