9. Buick GNX

The Buick GNX emerged thanks to emission regulation loopholes that let Buick push the limits of turbocharged V6 performance in the 1980s. Developed in partnership with McLaren, the GNX boasted formidable acceleration and power, rivaling the era’s best sports cars. Buick took advantage of relaxed rules for low-volume models, creating a legendary muscle car that remains highly coveted. Learn more about the GNX at Hagerty and MotorTrend.