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

I drive a SsangYong Musso, and the speedometer consistently reads a few miles per hour above my satnav. I have always believed that the satnav would be the most accurate and reliable, but I recently ...

Knowing your driving speed is extremely important for long drives, a trip to the local market, or just a short weekend getaway. Vehicles have various safety features loaded into them, but one of the ...

Speedometer: Aftermarket modifications, such as different tire and wheel sizes or a change in the differential gearing, can cause speedometer inaccuracy. GPS: These devices are positional speedometers ...

Leaving aside the traffic reports powered by its crowdsourcing engine, Waze also displays the current speed limits for every section of the road. This means drivers can see the speed limit even ...

Usually, Lexus products would have a similar screen to the right of the main gauge, but not the RC F, oh no. For reasons known only to God and Lexus engineers, they decided to add the smallest ...