The future generation 2014 BMW M3 (F80) sedan was recently spied again doing some high speed laps on the Nurburgring race track in Germany. Apparently, the 2014 BMW M3 is going to be lighter, faster and more efficient than the current generation of the high-performance sedan. The power is going to come from a 6-cylinder turbocharged engine, however, the exact output of this unit is currently a mystery. The future BMW M3 (2014) is expected to be unveiled towards the end of next year.