you can quote FED REGs all you want it still comes down to a simple facts:
1) YOU CANNOT LEGALLY DRIVE A SKYLINE ON US SOIL *unless its a motorex car which was grandfathered in*
2) YOU CANNOT LEGALLY TITLE A SKYLINE IN THE UNITED STATES *unless it has a motorex title that was grandfathered in*
3) ANY PERSON IMPORTING A SKYLINE IN THE USA IS DOING SO TO DRIVE THE CAR, WHICH AS IVE STATED IS ILLEGAL
there is no way around it. your "skyline owners meet" all of them that arent motorex cars are ILLEGAL. If they are being driven on the street i would say 99% of them are FED ILLEGAL