Hmmm, RS4. They sound fantastic. Hadn't realised they were so 'affordable' now too. Only thing that puts me off a bit is the potential running costs. I've been offered a well spec'd brand new S4 (330bhp, part leather, B&O speakers, 19" wheels, etc) for £33K. Sensible, quick as the R, uber stealthy, but seems a bit bland. I still prefer the R.
I want to like BMW's, but I just can't.