from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A high-performance automobile, often with flashy, sporty styling.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a variety of high-performance automobiles, especially American 2-door rear wheel drive mid-size cars of the late 1960s and early 1970s equipped with large, powerful V8 engines.
From muscle + car. (Wiktionary)
Since then, Nelly has collaborated with Ford's design team and DUB's customization team to make the Mustang his own while still keeping the vehicle true to its muscle car roots.