Wheels

[pits]

Hopefully looking to have a Chim by the end of the week, on my list of parts to sort and change is a set of wheels, it's got Imolas (?) 4*108 15" on at the moment, and I've noticed that tyre size doesn't offer a lot of options, ideally I'd like to go 16" but what am I looking at that.
A. Fits
B. Keeps in style with the car.
C. Has more range in tyre size
Anyone have any recommendations?

[pits]

Think I'm going to look around and find a set with 16's, and go for the square set up