Couldn't agree more with you. When you spend a king's ransome on a new car, you want it to look like it's a new car and not the old model! I've been told my S8 will be arriving in June, but if it's delayed that's no problem as the part ex price has been agreed and it will also give me more time to save up for it and consequently have to borrow less. I'm planning to hit Germany again in late July, so will be able to give it a good thrash on the roads it was designed for.
I don't know if I'd be happy with another make. This will be my fourth Audi (A6 2.8 Quattro Sport, S6, RS6) and I've got used to the quality of the interior and more importantly, 4 wheel drive. Living on the west coast UK we get twice as much rain as those Southerners in London and the grip on greasy roads is a great plus. I looked at a lot of 'quality' cars and the only brand (for reasonable money) that came close to Audi were Jaguar. Mercs have a dreadful reputation here for reliability and poor dealerships and the interiors are not to my taste either. I was also disappointed with the BMWs, although they're more reliable.
I'd actually be surprised if Audi release another RS6 in the new body, as Quattro GMBH isn't the largest factory in the world and must be running to capacity with what Audi has, or has actually announced it's going to build. What would get me running to the loan companies would be an RS6 in the next body update actually released at the beginning of body life, not at the end, especially if it had 600bhp. (I mightn't use it all, but it's a hell of a game of top trumps!)