1969 Plymouth GTX FacebookTweetPin 1969 Plymouth GTX. This year was the introduction of the optional Air Grabber hood (standard on Hemi-engined models), which made the hood scoops functional on this muscle car. FacebookTweetPin Related 1969 Chevrolet Camaro RS/SS Supercharged LS3 Pro-Touring 1971 Ford Mustang 1965 Chevy Impala | Muscle Car 1969 Mercury Cyclone Spoiler II Cale Yarborough Special 1970 Chevrolet Chevelle LS6 | Muscle Car 1966 Dodge Charger