Cheats:

 [Alt]+[F1] = Destroy yourself
 [Alt]+[F2] = Destroys all enemies
 [Alt]+[F3] = Full fuel
 [Alt]+[F4] = Max ammo
 [Alt]+[F5] = Max shield
 [Alt]+[F6] = one more lap
 [Alt]+[y]  = Autopilot on
 [Alt]+[c]  = Autopilot off

 I had some reports that they do nor work proper.

Funcheat:

 If you are boring yourself in the game press [Ctrl][Alt][Tab] to
 bring uo a little puzzle game. Attention: The race goes on. Press
 [Strg][Alt][Tab] again to get back to the game.