Ordered new tires for my E91, because . . . well, this:
I had been feeling looseness and sliding in the rear the last couple of times I drove it so I pulled off the wheels to check suspension components and found the rears with severe inside wear. The fronts are also showing uneven wear on the insides, but nowhere near this bad. I'd had it aligned in December and am hoping that this uneven wear was from before the alignment, but I am surprised that the shop did not notice the wear and try to sell me new tires.
Anyway, new Continental DWS06+ tires. Then, get the alignment checked and sorted so it doesn't reoccur (and then better monitor tire wear).