ConnieH, your photos of your yurt set up, (with rockin' shade porch,) and then your car packed up, speak volumes to this question of what fits in a car. op can check out the thread about 4x8 ft styrofoam sheets... er, just search "hexyurt", or "ConnieH"
I don't have the packed picture, but everything here fits in that little red car, even the bike goes inside. I mean not everything you can see, but the tent behind the car, the bike, the gnome, the shade shelter. chairs, table, tarps, coolers, stereo, water, etc. With a bike rack and more careful packing, two people wouldn't be uncomfortable. Does the back seat of a prius fold down? That makes all the difference in the world for me with the hatchback.