Yes, I know all that. But Diaclone means nothing to me (in fact I've always found the piloted mecha thing even sillier than sentient robots, and a failure of both nerve and imagination). The character, which is what I would be buying, meant absolutely nothing to me until the last few months when IDW started using her in the current comics, and definitely does not date back to Diaclone.
So the question I ask myself is do I care enough about this character to buy another copy of a toy I already know to be flawed. It's a pretty car, yes, and the red version does look somewhat better than the blue... But...