Optimus Prime must have felt he was starting to get a little old after Tranformers 3, so he want in for the automotive equivalent of a facelift: a new paint job. Because it's a Michael Bay movie, the gigantic red and blue semi with a flame paint job was just a little too subtle, so now we have a gigantic red and blue semi with a flames on flames on flames paint job.
Aside from Optimus Prime's new look, Michale Bay's website also showed a black and blue Bugatti Veyron Super Sport, a bright green "race-inspired" C7 Corvette, and a modded '67 Camaro SS version of Bumblebee. The first two will certainly make an appearance in the movie, but it remains to be seen if Bumblebee will go old school on us or if this was just a flight of fancy.
[via Michael Bay]