Mike, if run flat and the very wide rears are absolute musts, the Conti tires I mentioned aren't suitable. I was aware of the sizes and that they're run flat, but I thought that a change was possible.

First, I think that run flats suck. I don't have a spare, and carry one of those emergency kits to shoot goo into the flat so that you can limp to a repair station. Hope that I never get a flat.

The Conti has the size for the fronts, but there's nothing wider than 295 for the rears. This should still be okay for handling, but if it absolutely has to be wider for acceleration, then it's out.

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Enjoy the music, not the equipment.