2. 1970 Plymouth GTX 440 Six Pack
When introduced, the flashy GTX was the James Bond of the Plymouth line, meant to be a “gentleman’s” muscle car. It had the square-jawed looks of the Belvedere/Satellite line, but was dangerous when confronted, thanks to its standard 440 cubic inch V8 with 375 hp. Even with a minor redesign, the GTX had sales problems due to sharing many features with the Plymouth Roadrunner. Stylists made the lines smoother, and a “power bulge” hood was introduced, as well as non-functional rear brake air scoops. The convertible model was dropped in 1970. The Air Grabber hood was brought back, but instead of having two narrow openings running lengthwise as in 1969, it had one opening scoop located on the power bulge.