At $3999 on eBay, this rare Optimal Optimus prototype is “the first of the two confirmed to exist as the other one has electronics that work (although the other didn’t come with arm armor).” Auction page. Click here for first picture in gallery.

The toy came as-is with springs that didn’t work well, so I don’t recommend retrofitting it with missiles from another Optimal Optimus/Primal Prime, and no gun was included.

[via eBay]