22. 1968 Ford Mustang GT Cobra Jet
The legendary 428 Cobra Jet was introduced in 1968. And Ford immediately put it in the Mustang GT. The Mustang 428 CJ was a mid-year introduction (via Hemmings), and it was mostly intended for drag racing. That was why it was sold in modest numbers.

But it was a true beast of a car with a 390 hp engine, light body, and four-speed close-ratio manual transmission. With 0 to 60 mph time of just 5.4 seconds, this was the fastest, purest stock car of the era. This GT remains a very valuable collector’s item today.