My opinion these cars just eat rear tires. MB's are like that as well do to the rear camber setup. I'll be putting on my 3rd set of tires for the rear since ive owned this car, had some BFG's sport comp 2's first they lasted a year, put on some conti's and they are bald now after 1.5 years. Since ive had my car ive put about 40k on it in the 3 years ive owned it.

My current set are conti's dws all season at 285, ill be going back to stock size since the car is going to eat up the tires in year anyway. The front dont wear out as fast as the rear.