I own an 4-Runner and a '00 Boxster, but I need another car (Since Boxster's lease is ending shortly, and my mother wants to use the 4-Runner, plus, I am getting marry soon.) I pick the S4 because: 1) Fast, with a Chipped ECU it can get you over 300 hp and 350 tq/ft 2) 4WD, no need to worry about weather 3) Rich in features: comes with Bose stereo system, heated and 8-way power seat, glass sun roof, all dim mirrors, roof bike rack, ESP, etc. 4) Space is about the same compare to BMW and a bit better then IS300 in terms of cabin and rear trunk space. Compares with 325i Wagon or IS300 Wagon, I think this is a better buy ($$ vs features, comfort and power).
I went from an A4 avant to an S4 avant by accident. I visited the dealership to purchase some touch-up paint for the A4...a friend there asked me If I liked the S4, to which I replied yes except for the shift linkage. He tossed me the keys to an S4 AVANT Tip and said "go drive this for a while" well after an hour I ended up with a new car! It has been flawless for me and is great fun to drive. most people dont realize that a little eurpoean stationwagon can turn in a sub 6 second 0-60 time. It performs flawlessly in daily city driving as well as extended road trips. If it has a flaw it would be that at 120 mph you feel like you are doing 60. I LOVE this car!
tremendous acceleration when you hit it, can carry the groceries, bikes, kayaks, and get through snow with ease. and all around great performer than is fun to drive. Opt for the standard six spped which is smooth as silk.