Algodoo

It might not win the fashion award, but you get the point of what it should do.

controls:
1, 2, 3, R = Gears
S = Start engine
C = release Clutch
Enter = Brake roller bank
Down arrow = brake
None of the controls is toggled.

The engine was first designed to fit into a truck, but it didn't have enough speed to drive enough power through the gearbox..
Now, it's just a fairly slow engine in a car..