Well I've had the c63 for a few months now. All seems well so I decided it was time to chuck a few quid at her. So the cracked/perished and recently leaking Dunlop sportmaxx have been replaced by a fresh set of Michelin pilot super sports. I was blown away by the difference they made to my focus Rs and they fully delivered again. I also decided to go up to a 265 rear. Looks a bit better imo and obviously I've got a bit more of the car touching the road now. Which can only be a good thing.