Eggman, I forgot to answer your questions. I have a 2014 5-speed ES with 47,355 miles.

I am about to replace the tires (actually I want to change the rims and tires to Top Fuel's well researched recommendations posted here). The front driver side brake pads have also worn faster than the front passenger side (tires rotated and brakes inspected every ~5k miles). I'm running up against the 5 year warranty limit so am hoping to rule out the rear alignment issue.