I voted for the RX-8. IMO it is the best car for the money in that list, sans the S2000 but that is a ragtop and dont think it should be in the list so I did not include it in my vote.

Like MrFatBooty pointed out it is the Apex seals on the rotors that blow...all you need to do is replace the factory 2mm seals with larger 3mm and the motor will be fine. Problem is the seals are cheap but to put em on you need to rip apart the motor. Also this is a new design, Mazda is no longer using the Wankle rotaries and has now switched to the Renesis. It will be intersesting to see how the new ones handle...but in N/A mode they are fine. If they can handle boost well nothing a turbo and intercooler won't hurt.