Algodoo

this is a modified version of my 48 cylinder collision engine
it now also changes airfrictionmult on every collideset change

controls:
up = start engines in correct direction (opposite from each other)
left = brake left engine (turn left)
right = brake right engine (turn right)

in the setup like it is in this scene, you can modify the box up to 2.8kg/m^2 (which is in this case also 2.8kg)

if you want the original of the enigne, just say so and i'll upload it