Recently replaced my rears with Continental sport contact 7. Went down a size to 235/40 in the rear.
Continentals still cheaper than Pilot sports and have been voted best UHP tyre 2 years in a row.
Personaly i find it has amazing wet grip, even better dry grip, tyres are not noisy and sidewall is still soft and car doesnt lose its comfort and ofcourse the mpg's have become better with smaller tyre in the rear. Cant wait to wear the fronts and swap fronts with same Continentals.