Muscular cars, often referred to as "muscle cars," are high-performance vehicles that originated in the United States during the 1960s. They are characterized by powerful engines, typically V8s, and a focus on straight-line speed. These cars often feature aggressive styling and a lightweight design, making them popular among car enthusiasts. The term "muscle car" usually applies to two-door coupes with a sporty appearance and a strong emphasis on performance. Iconic examples include the Ford Mustang, Chevrolet Camaro, and Dodge Charger. These vehicles have become symbols of American automotive culture, representing freedom and power on the road.