The Audi 100 was a series of luxury cars introduced in 1968. The 100 was also known as the 200 (higher trim level), and the 5000 (U.S. Market). The Audi 100 was built in four generations: C1 (1968-1976), C2 (1977-1982), C3 (1983-1990), and C4 (1991-1994). The most notable 100 variant was the original Audi S4 (C4). The 100 would later evolve into the Audi A6.