I can see why it never made it. The bottom of the door, the dirty part, would whack me in the head both getting in and getting out. I note in the video that they leave that little part out: He's outside, presto, he's inside. Actually, I think it would whack me lower than the head, assuming I could duck down that far.
I think Tesla has improved it. Along with a bunch of other things improved.
Nice find, TEG.