Hot Wheels Stunt Track Driver cheats and cheat codes for PC

Getting cars:
One way is to hold [Ctrl] + [Shift] do to a barrel roll. 
Another way is get a good stunt. To get the rest of the cars, 
click on the trophy and at least get to the last race.

Cheat mode:
Hit any of the following keys to activate the indicated cheat effect 
on a custom track.

Effect  - Key
Instant crash  - C
Toggle headlights  - L
Toggle scenery or almost total darkness  - W