Be careful, when you assume that there will be two German Autobots. The twitter post mentioned a couple of hero autobot cars -- the term: hero car means cars used during filming for close-ups, ones, that usually arent'n meant to be destroyed (remember Bee getting wrecked in DC during filming? Well that was one of two hero Bumblebee cars). So to recap. -- a couple of German hero autobot cars can simply be referring to one character, one model! Furthermore, the post says that the "hero cars" are owned by a German company - not necessarily German make. Also, Bugatti is Italian.