i think carbon bonnets and gt wings look mad! (obviously, check out my gallery )
as someone else mentioned, not sure about the curves on a 33? would have to see it first. the only unbfortunate thing is the gun metal grey wont highlight the carbon much, but still cool.
As far as "practicality" of the bits and pieces....well....who here bought a skyline to be practical? Theres always going to be the "sleeper" style modifiers that bags the "looks" style modifiers, best to have both the "looks" and "power" to back it up , the wallet doesnt always agree though!
it's your car, my theory is that if every time you walk back to you car and you think to yourself "yeah i'm still proud to own my car" than who cares what anyone else thinks
my 2 cents