B5 S4 refers to a car manufactured by AUDI(VW) between 1997-2002.. It comes in a station wagon (Avant) or 4
door sedan equipped with a twin
turbo V6.. It is an engineering masterpiece due to it's timeless Audi shape, Quattro all wheel drive system, and aftermarket upgrade potential.. This is one of the most expensive cars on the road to maintain; and owning
one will ultimately turn you into a 2.7t master-mechanic..