Nice car, very comfy inside. It was easily as quick as the R, but it really didn't have that "plant your ass in the seat" feel the R has. No idea why, it has the power and the torque to do it. It was a very different feel, extremely nose heavy. There's no way i'd ever want to work on anything in that engine bay, it's crammed in there. The ride was a bit bumpier but not uncomfortable. It was definitely much easier to drive around town, you can just lug it around in 3-4th gear all day long. The R takes a bit more effort to get off the line just driving normally, the S4 was just easy as pie much like my old 540i 6spd. The wife and I looked at it on a whim while looking at another car they had for her. She said it was way too much car for her and would never use it to its potential. Whew, i dodged a maintenance nightmare with that decision. Looks like it's an A3 or B7 A4 2.0t for her. Can't convince her to like the S60R or i'd just give her mine and get myself a V70R.