Gents I know tyres have been done to death but here goes anyway. 1. I found the web site some of you have rated highly 'tyreleader' and they have some good prices on P zero's, however they have a varying selection for specific models ie, maclaren, R8, Ferrari and so on. Can anyone educate me on the differences? 2. If buying a "used approved" would it be wishful thinking that the tyres on the C63 would be fit for purpose and not TRIANGLE TR968, as I will destroy them quicker than a kebab on a Friday night followed by a pirouette through a dry stone wall!! Thanks in advance, 'be gentle'.