Bmw testing four different engines for the next-generation M3

Aside from BMW�s M5, its smaller sibling � the M3 � is also expected to receive a makeover. The present model, which was one of the most anticipated cars during its launching in 2008, was powered by a new and technologically advanced 4-liter V8. So far, BMW has yet to disclose what will be installed in the next-generation M3 that is slated to arrive in 2013. According to M3post, BMW is studying four different engines to power the next M3.

The first option being considered is the use of TwinPower bi-turbo technology in the existing engine (S65). This adds a few extra horsepower but with much more torque compared to the present configuration while still providing better fuel economy. Another option is to install either the N55 or N54 3.0-liter inline six-cylinder engine that BMW sets up with a single or a twin-turbo layout.

This means that the M3 will go back to the straight-six power plant that had made it very popular. BMW faces the challenge of attaining the 400hp that�s expected by most enthusiasts but this unit wouldn�t cost as expensive to develop. Another option is the 4.4-liter V8 that will power the upcoming M5 and M6 and will result to a more uniform lineup. One thing�s for sure though; no one wants to see the M3 get a detuned unit. [via - 4wheelsnews]