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 ...

Sometimes, the factory speedometer isn’t an option. Maybe you’re trying different wheel and tire combinations that throw off calibration. Maybe the gauge cluster finally gave up the ghost. Or maybe ...

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 ...