I think I'm about to push the button on a C6. The Audi dealership have offered a terrible trade-in as you'd imagine so I thought I'd see if anyone here would like first refusal. I'm thinking sub £10k if you can move quickly.
2003, Avus Silver (I believe), 92.5k, FSH, Bilstein PSS9 (6 months old), Milltek non res (6 months old), MRC mapped 504PS, new MOT, year's tax. £6.5k spent recently including recent intercooler refurb, brand new discs/pads, MAFs, rocker cover gaskets, service, all at MRC.

More pics at http://ebws.co.uk/RS6/. She's in various states of cleanliness ranging from freshly detailed to absolutely filthy. Also some of the pics are pre suspension/exhaust mods.
Make me a good offer and collect ASAP and its yours. Faults? Very slight vibration at ~80mph (likely wheel balancing) and slight oil seep from somewhere under the car which MRC couldn't identify. Neither of which spoil the enjoyment of the car.
Give me a call (07813 330954) in the morning or send a PM.
Regards,
Adam.