I have been wondering something for awhile. Does the C2 have any rear toe in? I have PZero Rossos 285/30/18 on mine and they last almost exactly 9k miles while the fronts last 2x that. Perfectly even tire wear, air pressure checked regularly, no unusual cupping or anything. On the other hand, I have 275/40/19 PZero Rossos on my 745Li and I have 14k miles on the car so far and the tires look like they have about 60% treadlife remaining and the fronts still look new. Same treadwear rating but completely different tire life. Both cars have similar usage under similar conditions.

 

Factor in the engine over the rear tires...911s are known for rear tire wear.

 

Yeah, rear bias weigh and suspension is set up for understeer big time.

 

You got very good milage out your P-zeros.

 

I am easy on them except seldom sunday drives. I should get 12-15k mi on mine if I wear them down to the wear bar.

 

I have got 17200 miles on my contis and they have a lot of tread left.

 

I am due for a new set. What size conti's are you running and which model? Thanks

 

10K on my rear down to the wear bar.