Slightly off topic, but my dad and I put our 2004 V8 S4 tiptronic cab with 340BHP I think, and 13,000 miles on the clock against my 2008 manual 3.0tdi A5. The A5 was as fast with a decent launch off the line, but the S4 pulled ahead a higher speeds. Not bad for a 74,000 TDI that has yet to have a remaped though. Also put it up against dads 4.2TDI Q7 and left it reasonably comfortably. The S4 was registering 17mpg, my TDI was saying 26mpg,although the A5 does not sound as good as an S4 or S5, its performance and fuel consumption speaks for itself. It would have been wasted by dads 2010 MTM S5 sportback stronic with the V6 supercharged. I can get about 40mpg on a run and he only ever got 29mpg on similar runs up the M5.