2001 audi tt quattro 2001 audi tt 2001 audi a4 2001 audi s4 base sedan 4-door 2.7l 2001 audi tt quattro base convertible 2-door 1.8l 2001 audi tt quattro base coupe 2-door 1.8l 2001 audi a4 quattro base sedan 4-door 1.8l 2001 audi a6 quattro base sedan 4-door 4.2l 2001 audi allroad quattro base wagon 4-door 2.7l 2001 audi a8 quattro base sedan 4-door 4.2l