really uneven rear tread wear?

[FUHRIUS]

just burned through the my rear pilot sports...bought the car at 24k miles with lots of tread, put 4k on it so far, and I can't believe how fast they've gone. fronts looking good.
the rears are really worn on the insides and less so on the outsides. is that common on boxsters, or do I have a set up issue. I'm wondering if my 21mm wheel spacers are contributing to the problem...

[Perfectlap]

when was the last time the car had an alignment?

[FUHRIUS]

service records indicate in was done about two years ago, at 14k mies.

[YellowJacket]

Rumour has it that Boxster rear tires just don't last (I'm guessing due to the tons of negative camber). I had heard consistently 15k miles out of the rear tires.

That being said, mine are almost-new, and I have put 7k on them so far. I fully expect them to last quite a bit longer than 15k. But I drive like an old lady most of the time. :-)

[Brucelee]

Alignment, tire pressure, driving habits, wheel balance, quality of tire.

All impact tire wear to a tremendous degree!

[Perfectlap]

just my experience, when the tires start to go they go quickly. I check my tire pressure with each gas tank 32F and 34R. (It was the other way around with my old car) and usually do custom alignments where negative rear camber is maxed out. But with this Boxster I decided to stick with Factory specs. I figure Porsche would know better than me.
Accelerating hard/often from a stop (red lights) will significantly eat into your rear tread life.
Your car sounds like it was tweaked often, did the previous owner go beyond Factory specs?
From reading the Porsche reviews on TireRack.com 24k sound like you got your miles worth. Some reviews complained about only getting 15K out of PS's.