Kris - I'm late to the party as usual but you got what I was going to suggest; E400 AMG or the same in the C Class is the C350 CGI. Both rare but the C Class is £5k cheaper. Good luck with hunting!
Would this do? http://www.autotrader.co.uk/classif...om=2011&model=C CLASS&fuel-type=Petrol&page=1
Would this do? http://www.autotrader.co.uk/classif...om=2011&model=C CLASS&fuel-type=Petrol&page=1