That is the Dragonhawk.
The whole story?
Rumor has it that Sigma6 is doing so well that they can do another line. While the 8" line caters to a core set of characters (Duke must always be on the shelf, in other words), the NEW 2.5" line is vehicle oriented. The figures will have very limited articulation (less than MASK, unfortunately) and these things should come in sets.
So that is the Dragonhawk, piloted by Lt. Stone. It SHOULD show up in the 2nd season of S6, which by the teaser on yojoe.com, it looks pretty gnarly. Expect to see a VAMP, ATV, NInja Cycle, etc. Don't expect that these smaller vehicles will work w/ the 1/18th inch figures. Nobody knows if it will really work until they show up. Either way, I'm skipping them tho the Dragonhawk (expect it to be $40) is pretty tempting. I'd have to talk Craig into a lot of photoshopping to make the Dragonhawk look right w/ 1/18th. lol.
Here's the link.
ToyFare pics
Feel free to ask away. General Hawk is probably the most knowledgable about Sigma6 and you can find him over on the JBL or JoeSightings.