MotorSim is an interactive simulator that lets you test and tune different vehicle parameters. It includes an interactive simulator with speedometer, rpm meter, throttle, brake, and gear shift. It also has an engine sound generator, so you can hear the sound of the engine. It allows you to configure a number of vehicle parameters to calculate what the resulting performance will be. It is designed for both mobile and desktop devices. 

The resulting performance is based on the speed of the engine, the size of the brakes and the weight of the vehicle. It is calculated for a 1/4-mile road segment. It is designed to be used for testing and tuning, and it is not a driving game. It is intended to be used for testing the performance of a vehicle, and it can be used for that purpose. It is not designed for multiplayer racing. It is intended for use by one user at a time. It is designed to be used on mobile devices and it is not optimized for desktop devices.