Cool stuff! I really like that Optimus. Interesting take on Smokescreen, looks like a badass ninja. It even makes sense when you think about he's name. Maybe he uses smoke bombs to be all stealthy in combat.
Thanks! The design needs more work, but I liked the concept. The name Smokescreen always seemed more fitting of a dark ninja-like design than a blue&red rally car, IMO. MS Paint, the XP version.