Personal Cars:

Audi 4000: Many things have been customized by Jason on this car including: paint and body work, installed supercharged VW Corrado engine.
Toyota Pickup: Jason also owns a Toyota Pickup which he uses for off-roading.
1972 Pontiac Ventura: Jason's first car.
Audi Sport Quattro: Jason is currently in the beginning stages of re-creating an Audi Sport Quattro.  These cars were the production parallels to the legendary 80s world rally cars.  Audi only produced 224 copies of this car, which were only sold in Europe.  In comparison to the Audi Quattro the Sport Quattro featured a carbon-kevlar body,  wider arches, steeper windscreen and 12.6 in shorter wheelbase.