CAR MUSCLE is a term used to describe cars that are powerful and fast. The four crossword solutions for this term are VETTE (5 letters), CORVETTE (8 letters), TRANSAM (7 letters), and STANG (5 letters). VETTE and STANG are both abbreviations for the Chevrolet Corvette, which is an iconic American sports car. CORVETTE is the full spelling of the same car. TRANSAM is an abbreviation for the Pontiac Trans Am, another classic American muscle car.