It is a full-size luxury sedan that debuted in 1994 as an Audi V8 successor. Audi A8 has total of 4 different generations. This model is the most luxurious of the all Audi’s models, either available as front wheel drive or all-wheel drive (Quattro) vehicle. For weight saving purposes Audi A8 chassis was made of aluminum. There is longer (extended) wheelbase version of A8 available called as A8 long that features additional legroom for passengers.