I had my 34 for 18 months, got pulled over once (but that was by Knox TMU) for beinf stationary in a side street, and only had the odd Leb in their VL/VN's wanna race.
Not sure why you get hassles... maybe it depends on the areas u drive.
Most, if not all drivers know the Skyline's have good strret cred, they just wanna rev you up to see how it goes.
Just don't end up like that Ferrari owner racing the Ford GT in Warburton the other day - Dead!