READ this first
I run a c5 highly modified RS6...................I love her to bits and there is no other car that can satisfy me at the mo but they are money pits! If you can afford a £1000 for a brake change and a £1000 for cambelts and £120 ish for 300 miles a tank then fine if not don't bother as they might be 10 yrs old but they are still almost supercar prices for repairs
http://forum.rs246.com/viewtopic.php?f=2&t=15229