The Audi 100, whose name refers to the power of its engine (around 100hp), was commercialized between 1969 and 1994. During these 25 years of commercialization, 4 versions appeared: the C1, between 1969 and 1976, the C2 between 1976 and 1982, the C3 between 1982 and 1991, and finally the Audi 100 C4, between 1990 and 1994. The Audi 100 C1 appeared in 1969 in sedan version and was equipped with 3 motorizations 1.8l of 80, 90 and 100hp. The following year, a Coupé version was presented as well as a new 4-cylinder 1.9l of 115hp and then 112hp, which also equipped the version GL of the sedan. >From 1976, the Audi 100 C2 arrived and Audi showed its ambition to compete with the Mercedes-Benz W123 and BMW Series 5 E12. From 1977, two new car bodies appeared, a version 'Avant': equipped with a tailboard, and a 2-doors version, called 'Coach' and not Coupé. A new 5-cylinder engine of 115hp also arrived in the catalogue. In 1979, the Audi 100 underwent a slight facelift, particularly on the lights and the inside. A version CS was revealed in 1981, remarkable thanks to its spoiler, its light-alloy wheels and its 5 speed gearbox, more economical. The 3rd version of the Audi 100 was presented in October 1982 at the Frankfurt Motor Show. It represents a turning-point in the history of the model, owing to its design more aerodynamic, its quality upgrading and the introduction of the Quattro. This Audi 100 C3 was available in 5 motorizations from the 75hp to the 136hp and two Diesel of 70hp and 87hp. The version Avant (Break) officially arrived in 1983. In 1988, the Audi 100 C3 underwent a rejuvenation, and the following year was presented for the first time a special sport series. This over-equipped series adopted the integral Quattro transmission coupled with the engine 2.2l turbo, 2.3l and 2.5l TDi. The last Audi 100 appeared in 1990, while its precursor was still on the market. Technically more advanced and more powerful (V6 of 2174hp), the sporting version remained in the catalogue, equipped this time with the 2.2l developing 230hp. It was redesigned in 1995, and took this opportunity to change its name into A6, which is still known today. Su career came to an end two years later.