Sorry if this should go elsewhere, but it didn't really seem like a news news item and not just add on to other threads talking about specific aspects of filming schedule... Just caught some scenes being staged and filmed in downtown Chicago and saw a couple things of note. -Twins are definitely back and in these scenes... same black smartcars with orange/green trim. -Ironhide with a NEST alliance liscence plate (can't remember if that was there in ROTF) Saw a chase scene being filmed with several Autobots racing behind what looked like demolition derby cars... closed top with plastic net windows over the door windows, scrapped together bodies, etc. Mostly black with some color paint. My first thought was they were filming crew vehicles, and they might have been, but they also had sponsor decals (Gillette I saw for sure) and big racing numbers (again, 13 I saw for sure) and figured they wouldn't put those on cars that weren't being filmed. My first thought when I saw them: Stunticons, but that's total conjecture. Cars in the Autobot lineup: Bumblebee, the red Ferrari, Ratchet, Sideswipe with the roof down, Optimus prime and a purplish-blue sports car with black tires that I didn't recognize. My first thought was that it looked exactly like Shockwave's Alternators Alt-mode... I wonder if part of the plot is that he infiltrates the Autobots... Optimus Prime definitely, definitely, definitely has a full sized trailer. Again I can't remember if he's been seen in the movies with one before, but I got a clear shot and some photos of it. If thats new, LMK and I'll post pictures... if not, then, oops, my bad.