Opel Ampera on the Volt?s heels

The Opel Ampera passed an important milestone Friday, April 23, when the first pre-production Model Year 2012 Ampera rolled off the line at GM?s Pre-Production Operations assembly line in Warren, Michigan. Assembly workers will build more pre-production Ampera?s in the coming months. These pre-production vehicles will not be sold at dealerships, but used instead for testing and validating the production intent design as well as developing the final vehicle software and controls. Engineers in Europe and the United States also use them to tune the vehicle?s overall driving experience.