Is the Chevy Bel air an American muscle?

No, the Chevy Bel Air is not generally considered an American muscle car. While some high-performance Bel Airs existed (especially with optional big-block V8s), the Bel Air was primarily a full-size car, emphasizing comfort and style rather than the raw power and performance that define muscle cars. Muscle cars are typically smaller, lighter, and more focused on acceleration.