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BMW teases new M3 and M4 ahead of Detroit debut (+video)

As the world awaits the debut of the new BMW M3 and M4, which will take place on January 13th at the 2014 North American International Auto Show in Detroit, the German automaker gave us this official teaser.

The BMW M3 and M4 share many attributes, including a 3.0L inline 6-cylinder turbocharged engine that produces around 430 horsepower. The former is based on the 3 Series sedan, while the latter derives from the 4 Series coupe.

You may remember that an M4 concept was unveiled earlier this year at the Pebble Beach Concours d'Elegance in California.