illegal, as someone said its against pedestrian laws.... although i dunno how meathead 4wd owners with massive bullbars get away with it i guess atleast they have no sharp edges on them unlike a bumperless skyline.
But yeah, see a few cars getting round like that, usually its the "omg cuz jus got myself dis fully hektik front mount and its all bling an chrome, an i wanna show it off or cant figure out howta get the front bar back on,yo" type of owners though...