Damn dude! You and lug nuts are like me and brake bleeders haha!
Well, this is the first time I've had this on the GT-R. My last one was an EVO IX MR with a similarly buggered lugnut, but it was just one.
This time, two things happened:
1. I let a dealership install the tires - despite me standing there watching, I didn't think much of them snugging the nuts up first with an impact wrench, but they torqued with a torque wrench
2. After rear pads went hinkey at my last track event, I took off the lugnuts hot. My plan was to put them on only cold, but I removed while they were still hot. This was clearly a serious error. The threads nearest the wheel were obviously damaged, either by the dealership or me detorquing them hot, and when they went back on they damaged the stud on the way down. Now one is stuck on the right rear, and now the stud is loose too and I can't get the nut off.
I think my best bet is going to be to cut a notch with a cut off tool down both sides cutting the nut in two toward the extended stud, and then hope I can drive a chisel down on the nut splitting it in two around the stud.
My other two hopes would be to be able to cut the stud after I got the wheel loose, but I'd have to get the cut off tool between the wheel and brake rotor. Not an easy task.
Last would be drilling a drill into the stud/nut to drill the end of the stud out of the nut.
Hopefully, solution #1 will work. But that will have to wait for another day. I'm too busy right now.