5. 1965 Shelby GT350
When Carroll Shelby transformed the Ford Mustang into the GT350, he delivered a street car with true racing pedigree. Shelby’s meticulous upgrades—ranging from enhanced suspension to a high-output V8—created a machine that excelled both on the road and the racetrack. The GT350’s dominance in motorsport set a new benchmark for muscle cars, blending everyday driveability with uncompromising performance. Its legacy endures as a symbol of American ingenuity and motorsport success. For more on its impact, visit Hemmings.