Besides the knurling being messed up on the upper one, they do look different but I don't think that is significant. I would guess that the "wheel box" is pretty much the same on all of the cars and the important difference would be the chrome 'bezel' but I'm not sure they are different between the cars either. I couldn't find a part number for the wheel box for the S1/2, but I did find one for the TC.