Pontiac Firebird
After Leviathan!Sam and Leviathan!Dean go on a killing spree (while driving a 67 Impala) causing the real Sam and Dean to become America's 2nd most wanted criminals, Frank Devereaux advises the boys to lock up the Impala to avoid detection.[1] At first they drive a Pontiac Acadian,[1] then Dean steals a Dodge Challenger.[2] After Bobby's death,[3] Dean drives a Buick Special Deluxe[4] and then, when he's in 1944, a Plymouth Roadking.[5] After making it back to 2012, Sam and Dean drive a Buick Riviera,[6] a Mercury Cougar,[7] and then a Pontiac Firebird.[8][9]
The Pontiac Firebird Trans Am is a 1977 or 1978 model with Idaho plates: SD 4420E.[8][9] Dean cares about its condition, expressing concerned that Jeffrey's dog will pee in the car when they have to leave him alone in the backseat.[8]
