Remember calculating which speedo drive gear would make your speedometer and odometer read accurately after a gear and tire size change? if you own a new JK wrangler, those days are gone. Now the ...

If you've ever performed any kind of driveline or wheel and tire swap, you're probably familiar with speedometer calibration. By stepping up to larger tires and/or wheels, the speedometer reads slow ...

A recent update to Google Maps has allowed motorists to see their live speed, similar to the function already offered by the navigation app Waze. If you're new to apps with a GPS speedometer, you may ...