If you're considering the QF2, you might also consider:
Lots of the larger gliders have two or three piece wings. This is true, for instance, of the Gentle Lady and the Olympic 2, and I think it's true of the SIg Riser 2 meter, all nice handling, slow gliders. The Olympic II is 100 inch wingspan. The two piece wing fits pretty well crosswise in the back seat of my car*, or I could put it in the trunk if there weren't too many other things in there.
I carry two 3 meter gliders in the front seat. If I folded down the rear seat, I could keep them in back. At the same time, I can carry a 1.5 meter glider and an Olympic 2 or a Radian. Not much room for passengers with all those on board, however, unless I put the ski box on the roof.
*93 Saturn SL1, which is pretty small and gets 35 mpg on long trips