Get alot of monster points to unlock trucks, then get 1st in all events for some more of the trucks, then beat the Las Vegas finals. extras.....Run the Sam Boyd Stadium race in under 10 seconds....
I'm still trying to figure out how to do a doughnut.
Coming up on a jump, I often will press boost just as I get to the incline, which shoots me up in the air. If you land on at least the back two...
I too am having problems getting with my stunts! this is the best advice I can give for the PC version: the left shift + left or right while on the throttle will give you donuts, boost after landing...