Aiolos

I just recently bought wheels and tires , so i researched this alot lately.

255 fronts and 295 rear would be about 27.0" diameter in 20's, close to oem diameter approx. 26.8"

For me i chose 19" wheels, didnt want the additional weight and wanted more tire between the rim and the road

265 and 305 would be just slightly larger than oem diameter, probably would work fine if you didnt lower too much,imo. I chose these tire sizes but in 19"

I chose continental extremecontact DW, could not pass up 50% off!!