The P.O. of my E30 included a bunch of the original parts from when he had the car preped for his track school. Among other things, he included the brake pads pictured below.
1) I'm assuming they're garbage? They are pretty rusty, and the surface isn't great.
2) They have between 8 and 10 mm remaining, so it's a bit odd why they needed replacing. Because the car sat and they got rusty? It looks like he replaced them with OEM brakes, so it's not because he moved to a track pad. (the boxes are pictured, and I'm assuming they're the boxes of the new brakes, not the old ones).
EDIT: I don't see what I'm doing wrong with the picture links.
You'll have to click below.