BMW is preparing its new M4 for a debut at the 2014 North American International Auto Show, and the final testing stages have apparently involved many, many laps of the Nürburgring. The only problem is, the two-door track star appears to have a case of the waggly tail, as spotted by a spy videographer. Generally, the serious nature of testing limits these sorts of shenanigans, but don't tell the test driver that.
- Aug 16, 2013
BMW M4 Concept: Monterey 2013