Does anything notice how odd it is that the GT3 rears are wider (As are the Carrera Sport's XRR rims) than the turbo wheels? Usually the turbo has the widest of the line.
For those of you interested, I found out that to fit these onto a C4S or a Turbo, you'd need 17mm spacers in the rear. I'm also curious about whether the stock 305mm tires will fit on those 12" wheels without looking too distorted. I noticed that the GT3 comes with 305mm tires in the rear whereas the Turbo also comes with 305mm tires on 11.5" rear wheels.