I've been looking through Seibertron's pics from the Hasbro tour of Botcon '07 (http://74.53.137.200/events/gallery....ze=0&start=125) & I stumbled across these prototypes, of whom I'd completely forgotten about.

A Jazz Porsche Alt (How freaking Cool!)

& this...





Does anyone have any idea what it's supposed to be?
Judging by the pilot next to him, something GI Joe-related maybe?




& this trailer-thing (of which I've got no idea about)...