Algodoo

My spring engine mounted on a car with front wheel drive. There's no transmission, or throttle, so you can only brake and quick-start. It's a pretty simple engine, and it sometimes goes backwards for a few seconds, but it'll go up to about 100 m/ph, and it's got like 20 or so hp.

IF you take the weight off of the bottom, be warned that the wheel will skid on the ground and it'll take much longer to get going. BUT, if you take the weight off when you're already going fast, the car'll go much faster, and there won't be a bunch of skidding (unless you use the brake). It'll probably go like 40 m/ph faster.

The very limited controls are in the scene, so have fun and please tell me what you think of it.