Glitches

It doesn't probably work for the Demo, but the wiki author hasn't confirmed this.

Crash other cars
Press [Alt] + [Tab] to switch back to the Windows desktop during game play. All cars in view, including your own, will go out of control. Wait several seconds, then press [Alt] + [Tab] to return to the game. All other cars should still be out of control, while you can regain control.