Algodoo

A classic police car with a two-speed transmission capable of reaching 140mph in top gear.

S plus <- or -> to start engine in desired direction
D to engage drive
G to toggle gears (low gear by default)
F to apply/release parking brake
hold DOWN to apply brake

the body, windows,wheel wells and wheels are grouped. You can push them to the background to see how the mechanism works or to see which hinge brakes are applied and which are released. For your convenience, I recommend familiarizing one's self with the hinges associated with the aforementioned hot-keys.