It really is up to you dude, but IMO, I suggest just getting a cheap daily that can get you from point A to B while you're on your P's, (in this case Uni).
I had always wanted to own a Skyline for as long as I can remember, and when I got on my P's, I was deadset on buying one even if it was non-turbo. Looking back now that I have a GTT, I'm glad I didn't haha.
Like someone else mentioned above, no doubt you're interested in performance, just wait till you're off your P's so your money goes into a car that you'll keep for a very long time. Those 4 years will go by really quick, trust!