These topics are always hard. I'd love a GTR, but if it's not in my budget now (after just buying a new Z) then I don't really look forward to it later. I'm usually not a stick in the mud, but I certainly can be when it comes to wishful thinking. (I don't play the lottery either....doh.)
BMW M1
Mitsu Evo (see how my budget sucks when you have a new car to pay off? lol)
GTR
Or perhaps a combo buy of a Jeep Rubicon and a Honda s2k (practical/winter plus attainable fun) and a mid-sized sport touring bike.
On some topics I'm a practical, boring mutha...