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Paul, No, coming out of a turn, the more weight on the rear tires, the less likely to start slipping. It is on the second part of the turn. This is why a RWD drive (or AWD these days) is considered better for performance - the balance between the engine up front and more weight over the rear wheels. The hybrid has some weight back there, but the Energi has and extra 200 or more lbs. It handles better coming out of a turn.

I think the C-Max could do pretty well, with mods. Or at least the Energi would; it has 300 lbs extra weight over the back wheels. I've always noticed how balanced the car is on twisty roads.

Run-flats ride notoriously hard; it's consistently reviewers' chief complaint about BMWs.

I have heard that you will be totally disgusted with the quality of ride...

I found this in FFH Forum: "run flat bridgestone driveguard tires.The tires are quieter and handle much better than the michelin energy savers. they are very quiet too. i was worried the gas mileage would go down alot with a run flat w speed rated tire. to my surprise the mileage is about the same and thats with the oem recommended 35 psi. im wondering if i boost the pressure alittle if i can do even better. overall, a highly recommended tire and im generally a die hard michelin guy. No worries if anyone wants the security of run flats since we do not have a spare. go for it" I wonder how accurately they're measuring their gas mileage, but I thought I'd pass this on.FWIW :) Paul