Look like mundano wheels to me, don't like them at all, but that's just me. In my opinion, the only way to pull off big wheels is with a proper pro-street look.
Not really what I'd call pro street, but found when googling "pro street capri" and thought it was insanely cool anyway:
I'd guess 15 or 16" wheels on that? Simon's race capri with the 16" rfx alloys looks good too, don't know where to find a pic though.