Race Stats: Speedometer and G Force shows GPS speed real time GForce it measures your 0-60 mph or 0 -100 km/h and 1/4 mile or 400 m. You can simulate a drag race using this app. It's easy to use because it will start and stop the timer automatically. You can switch between imperial units and metric units. This app provides you a tool box for you speed and acceleration tracking in order to help you to become a faster driver. Test your car's limits.