GPS based Speedometer and timer for 1/4 mile drags and 0-60 mph sprints for real cars and trucks.This app is a danger to yourself, your car, pedestrians, society.. pretty much everything. Do not use at home or possibly anywhere. Use at your own risk. May experience large doses of adrenaline while using this app (hopefully not from a paramedic). May contain nuts.Touch lights to start, wait for GPS fix and put the pedal to the metal when light hits green!Your time can be uploaded and results compared with other fast drivers.Car Speedometer vehicle performance race HP dyno speedometer