[DeepD.Fast.Rider]

Hi, 265, if you go over a bump the 275s touch the inner insulation. They scrub. Also the weight of the car and camber mean you will have quick inner wear, so your tyre pressure needs to be adjusted to reduce only inner wear, but you will have to change the geometry of the axle to even the wear between the inner tyre and outer tyre. Also the grip because your tyre will drive on the inner part more rather than the whole tyre, only right pressure will balance it well.

I have run prosso pirellei tryres on mine, 265 with the geometry set up for 245s , i have 25% more wear on the inners of the rear tyres. Worse grip than rfts in rainy weather etc, you have to keep the right pressure for good grip , nearly 7% (guess) lower than bmw's recommended to get balanced grip between the inner part of the tyre vs outer part.

But cornering will be a piece of cake at high speeds.