Flying cheat for Mad Tracks
First run the game and open some mode, then run this cheat, to control your vehicle use W,A,S,D and SPACE to fly up, CTRL for down, F4 disables the cheat. Works best if your vehicle isnt moving or you freeze the game by entering menu with Esc key. Also it makes other bots stuck in the air so they cant move.
If you end up in the air, restart the game and the cheat