I got 18" Mandrus regenmeister staggered wheels for the C230 Sport (8.5's front, 9.5's rear) with GARBAGE Nexen N3000's (dunno why I went cheap, brain fart I guess). My fronts tire size is 225/40zr18's and 255/35zr18;s in back. This tire/wheel package is a direct fitment for the C230 sport (can't remember the offset but from what I have been told they are a direct copy of the OEM rims). Anyway, I've been thinking of going with Toyo Proxes T1R's, 235/40ZR18 front and 265/35ZR18 rear. Anyone see any firment problems front and rear? if so I'll just go with the same size thats on there now. What do you think of the tires? Reviews have been really good. Appreciate the help!