Tractor (Bought from Groundskeeper Willie for 400 coins).Knight Boat (Secret Car: In a shipping container on board the C-Spanker).Book Burning Mobile (Complete all three level Races).(Skinner's) Sedan (Complete Principal Skinner's Bonus Mission 'Princi-Pal').Donut Truck (Bought from Gil for 250 coins).School Bus (Bought from Otto Mann for 300 coins) (required for the mission 'Operation Hellfish').Monorail Car (Secret Car: Up the stairs of the Monorail Station, across a small gap).(Moe's) Sedan (Complete all three level Races).WWII Vehicle (Complete Grandpa Simpsons' Bonus Mission 'Dial B for Blood').Fire Truck (Bought from Gil for 250 coins).Plow (Bought from Homer Simpson for 200 coins) (required for the mission 'Monkey See Monkey D'oh') Honor Roller (Bart's first default car).Speed Rocket (Secret Car: Next to the main road outside the Solid Gold House in the rich part of Springfield).Electaurus (Complete all three level races).(Cletus') Pickup Truck (Complete Cletus' Bonus Mission 'This Old Shanty').Surveillance Van (Bought from Gil for 100 coins).Duff Truck (Bought From Gil for 125 coins).