Heyhey, ive got a 997 cab, which is 3months old and has done 3,500miles. While washing it today i noticed a crack in the sidewall, approx 1.5" in length. Im just wondering if this is covered by the warranty? And if so, how many tyres should i try and get? Im sure ive read on the forum something about Porsche recommending you replace either 2/4 tyres at the same time. Incidentally, i have Turbo wheels with Michellin tyres. Has anybody else had a similar problem?