I've got Nitto's on the front and rear of my blown Mustang. I have the NT555R drag radial on the rear and they are pretty scary when when wet so I really avoid that. I run 275/40 17's in the rear and the traction is good but even with the supercharger my Mustang is not the torquemonster that the Viper is off the line. I've used them to run a 12.68 @ 117mph in the Mustang.
The NT555R is their Drag racing drag radial and the NT555RII is their road racing version which has a stiffer sidewall. I would probably recommend that for every day driving however the NT555R is the only one that comes in a 335/30 18" tire, and the maximum wheel width is listed as 12.5". The NT555RII is limited to a 305 size on a 12" wheel.
Nitto NT555RII
http://www.nittotire.com/tires_555r2.asp
Nitto NT555R
http://www.nittotire.com/tires_555r.asp