I have saw a C5 Audi RS6 for sale, it's a 2004 car, full Audi service history, 53000 miles, avant, mint......but is has had turbo failure! (twin turbo, 4.2 v8). I know these go for around £11-15K normally. This one is a fraction of that. How much are we looking at to get the turbos reconditioned/ fixed and fitted etc? Would the turbo failure have caused any more issues? I have no further info at the moment.