1970 Ford Mustang Boss Snake FacebookTweetPin 1970 Ford Mustang Boss Snake. This muscle car was the Good Guys’ promotional vehicle for 2010 and is inspired by two prototype Mustangs built in 1969 nicknamed the Quarter Horses featuring a Boss 429 powertrain with a Shelby fastback exterior. FacebookTweetPin Related 1975 Cadillac Eldorado 1966 Shelby Mustang| Muscle Car 1968 Camaro Z28 Viking 1963 Chevrolet Impala in Ember Red 1966 Pontiac 2+2 850 HP 1970 Plymouth Satellite