After watching the show, I caught a mistake with making that show.

When Merle had that car, on 22's or whatever... When he was driving into the run-down town, there was a side shot of the car driving through the grass. During that quick side shot, the rims on the car where completely different. Much smaller. Then the next scene of the car a few seconds later, the car went back to the original 22" rims. I re-watched this part a few times to make sure I was correct. I suppose I still could be wrong, but I'm pretty confident on my finding.