Originally Posted by synolimit

I drove 20k on the DW and 5k on the z3. I haven't noticed much which is good since the DW was a AWD WRX and the z3 is the 370z. Of course I can burn out and drift easier with RWD but fast aggressive street driving they were both good and I'm sure the 370z could keep up with the WRX. Only complaint I have is drag racing. The Z3 does not launch well but hey, its a 300utg tire.

Those tires don't look right. I'd go bigger.

EDIT:, yeah wrong choice. That's 0.6" difference, to much in my book. Keep it under 0.5".

Safely you can go 20% over your width of the wheel. I'd go 245/275 unless you want more square for performance, then maybe a 255 or 265 rear tire. But 245 is max on the front and 275 max on the rear.

I'd get a 245/40/18, 265/35/18 or 275/35/18.