Hey, let's have a party thread!
I mean a real GT, not something that's had the moniker hung on it by the marketing folks..I still recall a Chevrolet "Vega GT" called such a thing just because it had split seats and a console up the middle.
http://en.wikipedia.org/wiki/Grand_tourer
I'm talkin' real-live "fat" sportscars, with miserable back seats, luxury stuff, and enough of a trunk to get one man, one woman (or "partner", if you're convex, rather than concave) and two overnight bags from London, Munich, Barcelona, or Paris to a weekend of hedonism in Monaco as fast as possible.
Cars like the Ferrari 250 SWB, the Aston Martin DBs, or the Merc SL don't count...they're real GTs, but too expensive.
I've got two VW Corrado VR6s, and I just picked up a dead Alfa GTV6 to resurrect. And after I'm finished with the Alfa, I'll probably be looking for a 2nd gen Toyota Supra, after DIASISS & Karl La Follette reminded how cool they are.
After that? Well, my g/f had a 3rd gen Camaro in high school..I'd love to find a nice one of those for her. RobMopar's been talking about Dodge Daytonas. I've noticed a Jag XJS laying around at one of the local Eurocar repair shops...It's been there for awhile, and I can't help but wonder what kind of pocket change it would take for me to free up a little space in their back yard..
So, if you're interested in a real GT that a "grassroots" guy could afford, what would you be looking for?

It does have 4 usable seats though. This thing is actually called a GT and I have to say that, other than some anemic acceleration in stock form, it really does live up to the task. Very comfortable cruising at highway speeds, loves to carve corners, stylish (I think) and with the leather seats probably the most luxurious car I've ever owned. Best of all you can buy them at Challenge friendly prices.