Next-generation BMW M3 and M4 could use a turbocharged four cylinder engine

by SpeedLux

Engine downsizing is not a trend, but purely a way to offer more fuel efficient engines that also comply with tougher emission standards. All this is possible thanks to recent technologies with smaller turbo engines providing the power of a larger engine.

New BMW M3 and M4 have been out for a short time and the biggest update with the arrival of the new M sedan and coupe was the new six cylinder twin-turbo engine, replacing the outgoing naturally aspirated engine. Two cylinders less, but still delivering a strong 425 horsepower vs 414 in the outgoing model.

It is interesting to point out that the first M3 was powered by a 192 hp 2.3-liter inline-four, with the next one using six and then the outgoing one already eight cylinders.

Looks like BMW is heading back to its roots as the next-generation M3 and M4 could use a turbocharged four-cylinder engine.

BMW M product manager Carsten Pries told Motoring.com.au in a recent media launch in Portugal that the future [M3] could be powered by a four-cylinder engine.

The output has always risen in the M3 so we can only expect the next-gen model will pack more than 425 hp. Over 425 hp from a four-cylinder engine is not impossible, but with current production engines it would make it the most powerful four-cylinder turbo in the world.

For example the production version of the VW Golf R 400 concept is reported to produce over 400 hp from a 2.0 liter turbo, so if VW can do it in a hatch, then we are sure BMW can pull it off with their M cars.

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