New BMW M3 Sedan Video Scooped: Are these the Sounds of a Turbocharged Six?

By now, you have probably heard that the upcoming 2014 BMW M3 in both four- and two-door formats will do away with the current model's atmospheric 4.0-liter V8 and gain a turbocharged six-cylinder engine.

Most seem to agree that the most likely candidate is an M Division modified version of one of BMW's 3.0-liter straight-six units with either two or three turbos.

However, there are some rumors circulating around the net that BMW is developing a new force-fed V6 engine for its next M3 models. The speculation is based on a recent design filling for a twin-turbocharged V6 made by the Bavarian company at the German patent office. BMW has not commented on the matter.

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