Some observation made possible thanks to the wonders of HD technology. The Excavator Constructicon's face matches that of the leaked toy. The Audi R8, which apparently has a face mask or a glowing orb for a face, is being chased by more than one bike bots. Is Starscream spitting/drooling on Sam? He looks more colorful and more embellished. Maybe he is, maybe it isn't. Perhaps the tats on the new deluxe toy has a meaning. Someone's foot and spindly fingers, not Starscream's like the trailer implied. Megatron? The Fallen? It looks rusty and worn... When the faceplate breaks, Prime leaks red hydraulic fluid. Prime looks beat up in what appears to be a one sided battle. Does this hint at a possibility of Prime's death? This part clearly shows the Excavator Constructicon's configuration. He has his wheels tandem, forming a motorcycle like setup, not a unicycle. The reason why it looks like he's on one wheel in some shots is because it is. Apparently, he can rotate his "body" while his head and his arms face one way. Crucially, this show also clearly shows that he is indeed a single Transformer based on a quarry excavator. Another shot of the Constructicon's face. This analysis was done using the 1080p trailer.