Official: Opel Insignia Heading to the USA as the Buick Regal

General Motors officially announced today that the name of Buick’s next mid-size sport sedan will be the Regal. Even though the Detroit automaker did not hand out any photos other than a cropped image of the sedan, chances are that the US-spec model will be identical to the Chinese market Buick Regal which in turn is based on the European Opel Insignia. These two models differ only in some