The Pontiac Trans Am from 1970-1975 was a muscle car with a flair for drama—think swooping body styles and engines named like action heroes, such as the Ram Air III and IV. The ’74 SD-455 was the muscle-bound heavyweight, boasting an engine so strong it could almost bench press the car itself. By ’75, the Trans Am got a facelift with a wrap-around rear window, but emissions regulations were like a diet plan for the engine, slimming down those power gains. Who needs horsepower when you have style, right?