Thanks to an anonymous email tip we now have new images from the Transformers 2 Movie
set in Bethlehem PA.
In them we see some various shots of the steel mill being turned into a Chinese city with Chinese letter based signs, and a shot of a Chinese police car. The police car is a Chevy Malibu, slightly altered with the appropriate paint applications.
Whether or not the car seen will actually be a Transformer or not is unknown.