The Audi 6 is a line of front-wheel drive luxury cars, available in sedan and “allroad” body types. The A6 sedan that can be upgraded to the performance-focused S6. Similarly, the A6 allroad can be upgraded to the RS 6 Avant. The sedan is a spacious design for comfortable city driving, whereas the raised driving height and extra width of the allroad/Avant make it excel on highways and varied terrain.