The 1960s were a transformative period for American muscle cars, marked by innovation, experimentation , and a focus on performance.

Fastback and Coupe body styles. Popularized by models like the Mustang and Camaro, these designs emphasized sporty styling and performance.

Large V-8 engines. In the 1960s, powerful V-8 engines were widely adopted, becoming a hallmark of American muscle cars.

Sport-tuned suspension systems. Many muscle cars received sport-tuned suspension systems, which improved handling and stability.

The muscle car market declined in the mid-1970s due to rising fuel prices, emission regulations, and changing consumer preferences.