Good god, stop talking man. The S4 has never had the 3.2L. The Audi 3.2L is just a normal 6 cylinder naturally aspirated engine. For 10k you could get a bomb allroad or s4. Take note tho, that to do any larger work on the 2.7 TT or the 4.2L V8 that is around in those cars, the whole engine and trans usually will have to be pulled. If you want easy(er) and cheap(er) to work on models, look for the 2.8L/3.0L V6s and the 1.8L turbo. Keep in mind, the addition of a turbo is just another point of possible failure. VW also makes 4motion passats with the 2.8L and 1.8L engines, same awd as the Audi.