Might be legal, might not. I'd photoshop out the license plates to protect the owner either way. If I owned a Skyline, I'd be
very careful because it doesn't matter if it were "legally" imported or not, the government is snagging these cars and crushing them left and right. We had a technical school nearby that had an R34, gov't took it from them. Another guy had an R33 taken from his driveway by the gov't. Not fun!
Then again, if I owned a Skyline it'd be strictly a track car
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Current: 2005 Porsche 911 Carrera S 6MT
Previous: 2 BRZ's, 997 C2S, C5 RS6, C4 S6, B8 S4, GDB STi, S30 240Z, FC3S RX-7 TII, AW11/SW20 MR2, E30 318is/325i, etc.