Few cars stir up the rumormill quite like the next BMW M3. To that end, BMW fan-site BimmerPost was able to track down a source, apparently tied to the development of the next M3 (and M4), who divulged a few juicy bits on power, weight and timing.

Horsepower in the F80 M3 and F82 M4 is said to be close to that of the E90/E92, which was rated at 414 hp. This contrasts with previous reports that had horsepower pegged closer to 450. It should also be noted that BMW has been known to underrate the horsepower values for its engines. That said, the new turbocharged straight-six will supposedly develop 100 more pound-feet of torque over the current generation, too. The 4.0-liter S65 V8 found in the E90/E92 M3 developed 295 lb-ft, putting the new engine's torque in the 395 lb-ft neighborhood. We can live with that.

An equally interesting development regards the proposed weight of the new Ultimate Driving Machine. Apparently BMW is targeting the curb weight of the E46 M3. That older-generation Bimmer clocked in at about 3,400 pounds, while the E90/E92 M3 had grown to over 3,700 pounds. The 300-pound weight savings should come as welcome news to M3 purists, critical of the progressive weight gains from generation to generation.

For those interested in the aesthetic of the next performance-Bimmer, the F80/F82 update of the M3 is claimed to feature a more aggressive look, highlighted by a power bulge hood and larger fenders. That styling direction should not come as much of a surprise, as the more aggressive appearance is customary to the M3 by now and matches what we've seen in spy shots.

According to source, the F80 M3 sedan will debut first and come to market in early 2014. It will be followed by the M4 coupe, though exact timing was not revealed.
Related Gallery2014 BMW M3 Spy Photos