OK, I don't know the full story on this, but a buddy just picked up a Volvo HDT TC, and just saw an update on his facebook with this picture:
He had a Miata in an enclosed trailer, I just asked him for spec's on the hitch, will probably take a while to hear back as his other update is that he's waiting on them to put the trailer right-side up!
The toter (and I believe the trailer):