We only got the most recent RS4 (B7 body style). IIRC, the B5 RS4 was actually a wagon. I know it's a common mod for those with the B5 S4 to add the RS4 goodies to their car. Interestingly, doing this actually improves the reliability of the car vs the stock 2.7tt found in the B5 S4. Though if you are going to go that route with an S4, you might also want to check out AWE Tuning, which is also well known and local to me!