In 1982, Audi teamed up with American aluminum giant Alcoa to develop a substantially lighter full-size luxury sedan by replacing the standard steel chassis with aluminum. The resultant design, the Audi Space Frame, was 40 percent lighter than classic frames. Audi introduced this design as the A8, which debuted in 1994. The S8 variation, with enhanced high-performance features and a distinctive look identifiable by the vertical grille and chrome accents, was introduced in 1996 and has been manufactured most of the years since. Whether you’re interested in the first, second, or third generation, browse the vast inventory of Audi S8 models, parts, and accessories found on eBay.