Just revisiting this thread again and crying my eyes out at the thought of never getting this.
Thinking about the evil repaint of these with the dingy green and the snake head (I can't believe how many times I've watched episodes with the War Sleds, and never noticed the different head 'til it was pointed out in this thread!), another element that they'd have some freedom to play around with to add further differentiation from the heroic versions, is the color scheme of the 'decals.' The Filmation version makes no distinction as both have solid yellowish panels, making them look like Woodys:
http://www.2fords.net/johnspages/Won...oody-Wagon.jpg
But those didn't look at all like the decals on the original toy, and since the Horsemen's version has sculpted 'decals,' they could at least have the evil version painted differently. On the heroic one there's a green alligator (don't try to tell me it's a dragon) with a red background, so I say the evil one should be a red gator on a yellow background, or something like that. What do you think?
http://i1015.photobucket.com/albums/...comicon146.jpg
P.S.: While I'm thinking about it, the villains have a snake hood ornament on theirs, but what the Hell is the head on the heroic one? I used to think it was some kind of bird (which sort of made sense, since it's a flying vehicle), but it's got frickin' ears! A dragon would make sense too, but the beak looks more like a snapping turtle or something... but it's still got ears! So is it some Eternian beastie that we've just never seen or what!?