Yeah when I test drove one I put my seat into the comfortable driving position for me and it was literally touching the backseat. Even putting it up as far as I could without cramping myself in only left 1 or 2 inches. Unless you're friends with a lot of paper dolls nobody's sitting back there. I'm sure you could get a 3rd person in behind the passenger though.

Hopefully the Challenger will have a usable back seat.