I was just wondering on the R32 GTRs drivtrain and if it has, as i read on a site Full time 4wd?? Also what the difference between this and AWD is?? Are you able to change to RWD or not?? Also if you are unable to change it by the flick of a switch are you able to do it by a simple mod or would it require expensive custom work?? Any help would be mutch aprreciated thanx.