I went from a 57 plate 3.0si Z4 Coupe to an 07 RS4 Avant a couple of weeks ago. No regrets at all!
The montego blue / champagne nappa coupe was a very good looking car and I had a lot of fun playing with the lively back end when the roads were quiet. I was genuinely worried that my next car would be dull in comparison, but I hadn't realised how brilliant this car is in nearly every way.
Both engines are torquey naturally aspirated affairs. I really can't criticise the 3.0si - I got used to the power after a while, but that didn't really a matter too much. It was very responsive (more so than the RS4) and had a nice exhaust note.
I am amazed by the smoothness of the RS4 on just about any road surface. I can't believe now that I put up with the M Sport suspension and the run flats for over two years! I think the RS4 rolls more on cornering than I expected, and part of me did wonder if the DRC is in full working order. I tried not to get too paranoid but my concerns were partly justified: the audi dealer had set both rear tyres at 26PSI and it only cost me 20p at the petrol station to diagnose and put right
The turning circle appears to be bigger for the RS4 so that's making me sweat a little when manoeuvring into the back yard but I'll get over it.
Both cars were obviously built to last. The quality of the interior in the RS4 is in another league however. And the bucket seats are simply brilliant! I love them, especially the kidney squeezers.
I'm a bit confused as to how to stream my iPhone audio into the excellent BOSE hifi as there doesn't appear to be a physical aux in. The TV, CD changer and SD slots were probably the bees knees back when they first appeared in 2006 but I want my A2DP Bluetooth stereo inputs! Admittedly the Z4 didn't have A2DP support either but I made do with a cigarette adapter and a wire plugged into the aux in.
The sat nav is loads better than BMW's. Beautiful interface and voice overs. I had built in sat nav in the coupe and it felt ancient in comparison (yet the car was six months newer!).
I find it funny that most people think I've downgraded to the RS4! I'm totally ok with that. One of the guys at work (drives a Picasso) changed his mind after he googled it!
