2007 BMW Alpina B7 at Chicago Auto Show by Inside Line

The 2007 BMW Alpina B7 appears at the 2007 Chicago Auto Show after an unanticipated delay from its scheduled introduction to the American market last fall. Based on the BMW 7 Series, the 2007 BMW Alpina B7 will feature a supercharged, 500-horsepower version of the BMW V8.