Run flats would be a great solution.

AFter only 800 miles on our new CS, we already had our first screw puncture of our PS2s. Fortunately, the TPMS system indicated a low tire pressure of 30 psi on the rear tire, and my wife was not stranded in her CS. Our Porsche dealer recommended replacement of the tire, but I could not see throwing away the practically new rear tire. She does not track the car. So instead of spending $350 - $400, I paid $4.95 for a plug and patch, and a $5 tip. Runs just great so far.

Run flats would be a great option. Since there are run flats available for a ZR1, it would seem a viable option for an non-tracked Porsche as a daily driver. Does anyone have any experience with putting runflats on their Cayman?