I run 245/50/16 on all 4 corners. Some use 255/50/16 on the rears like the GNX did. Others are probably also using some taller and skinnier combinations too.
You can also get drag radials in some pretty un-common 16" sizes.
I have 255/50/16's on my GTA wheels now. I need new tires and am finding the 255's hard to find and generally more expensive. I will probably go with four 245's but will be sad to loose that extra width...
