I picked up a Sportz SUV Tent for my Land Cruiser this weekend. Pretty easy to set up except for getting the rain fly over to the top. This tent is tall.
I have the same one. They seem well made, good space. I havent seamed sealed mine and it leaks in the rain some, and yes that rain fly is a pain to get over, but otherwise setup is fine.
We've got a tailgate tent (CRS acting up, can't remember brand name, but the familiar blue one that's just over $100). The tailgate upper hatch sits just high enough that water drains off the part of the fly that goes the top. It has a couple of bungees that I hook to the wheels to keep things taut. I'd guess this one is about the same. Ours is on an 80, but the pic makes it look like the 100's hatch sits about the same height.
Well, yeah. Those curved wisps under the clouds are rain that isn't reaching the ground. As the air cools in the evening they will fall further before evaporating or may even hit the ground.