Also note the tread-wear pattern on the tire on the left, as compared to the distorted tire on the right. The tire on the left is worn evenly, flat and "square" and therefore was most likely mounted on the rear. These tires were never rotated front to rear and I bet they have an aspect ratio of 70 or 80. Probably 165/70s, or 175/70s or
As Andrew is asking here as well, what is the manufacturing date and I know they were on the car 3 years ago, look to have 2 or 3 years wear on the rear from "normal" driving. I betcha they are 8 - 10 years old.
No matter, they need to be tossed and time NOT wasted on pursuing this subject any further... (Not us, but Tom...) He needs to be driving this car after all the hoops he's gone through to get it this far!
Old tires are freaky.