I have my doubts about the B&O sound system being worth the cost, but I have to admit that the tweeters are pure elegance and just technogeek cool

But with an upcoming head unit upgrade to a Pioneer Appradio, I still don't see a clear edge with any current Audi offerings over the RS6, either in performance or interior accoutrements, excepting the V10 R8. And if we had gotten the C6 RS6, you could cross off the R8 as well! For my money, buying an S6 would get me a slower car and just newness for the sake of newness.

Ah, two technology points thought - carbon ceramic brakes, and FSI. I really like the concept and there's a lot more tuning flexibility with FSI over traditional manifold injection.

Air suspension though??? Magnetic dampers would make far more sense. I'd think Audi would have learned some lessons both from the DRC debacle, and Mercedes woes with its air suspensions.