Complete the Amateurs Group B to unlock the Buster GST car.
Complete the Professionals Group A to unlock the Firespitter RS and Pick'Em'Up V8 cars.
Complete the Professionals Group B to unlock the Bornbad GT90 and Ironhorze V8 cars.
Complete the Amateurs Group B to unlock the minigun weapon.
Complete the Professionals Group A to unlock the single missiles weapon.
Complete the Professionals Group B to unlock the double missiles weapon.