Locomotion in cars is created by the reactionary friction force on the car tires from the road in response to the friction force from the tires on the road. If you want the car to go faster, you need ...Locomotion in cars is created by the reactionary friction force on the car tires from the road in response to the friction force from the tires on the road. If you want the car to go faster, you need to increase the friction force on the car from the road, which you achieve by increasing how hard the tires push back against the road via the throttle, engine, and drive train successively.