Odd tire wear

[SpeedWiz]

I just bought a e30 325i convertable about a week ago i noticed that the rear drivers side tire has a lot of wear on the inside. So i looked at the spare and it has the same wear. So i dicided to take in to tire shops like good year. I was hoping it would be ajustable. Of course it wasnt. lol

So my question to you guys is:
what can cause the camber isue i am having?
springs?

an idea i had is maybe the springs are making the ride sag lower and its tilting the tires

the wheeels are 17 inch with wheel spacers too

[whiltebeitel]

If the car is lowered, it will wear the inside more, because it gains negative camber as the trailing arm gets closer to the body. If the car is at stock ride height, check for eccentric bushings in the training arm, but you may have a bent trailing arm, worst-case.

[havand]

Not to thread jack, but related question. How much wear on the inside of the tires on a lowered car is 'ok'? Inside worn bald with 1/2 tread everywhere else? I think you get my question. I know lowering it causes some, but what about a mild lower, like h&r sport?

[xwill112x]

or doing burnouts will cause the negative camber wear...