As I look at vehicles, I realize that one of my main criteria seems to be "can you sleep in it?" Specifically, I'd like a rear cargo area long enough and flat enough that I can lay out a foam pad and a sleeping bag.
I don't do a lot of "extreme" camping or off-roading anymore; most of the time I go to festivals or desert campouts in the southwest. About half the time it's just me; the rest it's with my wife who would like larger and more comfortable, with a bathroom, so I'm also considering a motorhome or a trailer - but if it's just me, I would rather be self-contained if possible. And I don't like tents, much, either - having to find a big enough flat space and the time spent rolling them out and setting them up and putting them away the next day, and cleaning them up after the trip; I'd probably be happier with a Springbar/Kodiak, but that's yet another thread. Usually it doesn't get THAT cold where I go, and it very rarely rains, but it does get windy and dusty.
I don't need to cook inside the car, and I don't usually take much i that needs to be in coolers or fridges. Not that I travel light - but again, if it's just me, I can squeeze in with gear on one side and bed on the other.
The Pinzgauer had a cargo area slightly longer than a queen-sized bed; but due to the rubberized canvas top, it would collect mosture, then drip on me. The Rover 109 pickup was perfect for this. The D2 isn't quite long enough, even if I remove the back seat or build a platform above it. The Volvo XC90 is, as is the newest Jeep Grand Cherokee. I had a Vanagon for a while, and aside from the 20-year-old, gutless, 2wd and worthless A/C, it was great - I should probably be looking at Subaru Syncros. At the same time, I like the vehicle to be a small as possible - so it fits in parking spaces and gets better mileage.
I also find this criteria useful when estimating cargo capacity. I don't need a HUGE amount of space - but if it's big enough to stretch out in, it'll probably hold a pile of 8' 2x4s resting on the center console.
Maybe I want a Sportsmobile - if I could afford it?
Just some random vehicular thoughts; random responses and suggestions welcome.