Audi's RS3 sedan is powered by the most power-dense five-cylinder engine ever. The five-cylinder engine and Audi have a longstanding relationship that dates back all the way to the 1970s, and ever ...
The Audi 100 Coupé S (1969–1976) turned the Audi 100 sedan into a sleek image-maker. With a 1.9L engine and only 30,687 built ...