MY current tires have been on 3 different cars, most of the time on my 97 Cougar that got wrecked, then on my 89 Cougar while I shopped for my Mark VIII. I think I put 6000 miles on them on the Mark VIII.
The passenger side one is destroyed. The drivers side is okay treadwise, and wearing fairly evenly across, but still wearing more on the inside. The fronts also wear much faster on the inside. I had an alignment done, but they waffled and wouldn't do the rear for some reason. The also had to be told about the eccentric and at first wouldn't touch the Cougar as it was lowered.
I have ran staggered tire sizes up to this point, as my Cougars didn't have ABS, but now I am going to run 255/45/17 all around so I can rotate at least front to back (I tried to find some asymmetrical tires but none really exist for UHP/MP tires, just all season).
I wonder if a trac loc would save me enough over wearing one tire out in the rear to make it worth it. Pretty much every 1-2 shift is at WOT and a tire chirper (or triggers TC). and each take off is aggressive, as is each stop.
The tires that came on the car look to be wearing evenly (I put the wheels and tires on my 89 Cougar), but at 215/60/16 they won't survive my driving, but if need be I can toss them back on the car. I had been holding off on tires because of the threat of the car being totaled, and am running a 225/60/16 on the front but ABS doesn't like having 3 different sized tires.