Audi 4000S Factory OEM Auto Parts are designed for this Audi 4000 that is the equivalent to European version called the Audi 80. These audi 4000S Factory OEM Auto Parts are essential to upgrade this sensation of a vehicle that was produced for around 40 years (from 1966-1996). Initially the Audi 80 was essentially the Volkswagen Passat and it eventually diverged from its Volkswagen counterpart in the mid 1970s. In the United States the Audi 80 was initially called the FOX for a brief stint and then it took on the 4000 name in 1980. The vehicle was designed by Italian designer Giorgetto Giugiaro. This vehicle proved to be quite profitable because it borrowed parts from many of its counterparts at audi and did not require intire part redesigns. View our inventory of Audi 4000S Factory OEM Auto Parts. These Audi 4000S Factory OEM Auto Parts were designed to suit even the pickiest Audi enthusiast. Factory OEM parts are parts that are attached to your vehicle right when it is driven out of the dealerships lot. These parts are attached to the vehicle when it is originally manufactured. Factory oem parts can be more expensive at times because they may be harder to find or may be of higher quality than aftermarket parts.