[h=2]1964-1973 Ford Mustang base[/h] A 1965 Ford Mustang advertisement | Ford

It’s the iconic first-generation Ford Mustang — the Carroll Shelby, Steve McQueen, Gone in 60 Seconds Mustang. Yes, the Mustang was one of the most popular cars of the ’60s and could be had with fire-breathing V8s. But the vast majority of the 2.9 million produced came with the base engine: Ford’s bulletproof old inline-six. Available as a 170 (1965 only) and later a 200-cubic-inch six-pot, the Thriftpower pumped out a wheezy 120 horsepower (the 170 made 101), making the majority of Mustangs anything but sporty. We’re all for historical preservation, but we can’t get mad whenever we see a vintage six-banger ‘Stang that had a V8 transplant.