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 ...

Regularly changing your tires in pairs with the properly assigned tire and wheel size isn't going to impact your car at all. But what about if you want bigger tires? Or smaller ones? The short answer ...

Yes, it does! Though not as much as speedometer fudging by your car manufacturer. Your car can only measure rotations of the axle, with expectations of tyre circumference based on its standard tyres.

The speedometer, of course, tells you how fast or slow your car is moving when you’re behind the wheel. The traditional speedometer shows a hand that raises or lowers, or swings left and right, when ...