Don,
The Carvair was designed by Freddie Laker to turn DC-4/C-54s into a car ferry.
It's an odd looking beast and there were only 21 built, but it's cool to see an injection-molded kit of it.
I noticed that the link I post originally doesn't go straight to the page needed. When you land on the Roden news page, click on the "In Processing" link on the left. The upcoming 1/144 scale kits should be right there.
Cheers, Aaron