BMW announced earlier this year it was rolling out an all-new turbocharged four-cylinder engine, but it appears that forced-induction four-banger is just the tip of the iceberg. New reports suggest BMW will exclusively use turbo-fours in its entry-level models.
According to Autocar, the automaker will use turbocharged four-cylinders in all applications requiring 240 horsepower or less. Four-cylinders, as we have previously reported, will replace the normally aspirated 3.0-liter inline-six currently sold in “28i” models. Applications needing more power (i.e. the “30i” models) are slated to receive a version of BMW’s next-generation I-6.
The four-cylinder bound for 28i models will be quite similar to the turbocharged 2.0-liter launched in the 2011 X1 crossover. In European form, that engine cranks out nearly 240 horsepower and 260 pound-feet of torque. Another variation, equipped with different engine mapping and a conventional turbocharger in lieu of the dual-scroll unit found beneath the X1’s hood, will likely make a little less power.
BMW has confirmed the Z4 will be the first model to use a turbo-four in the U.S., but the roadster will likely make use of the sophisticated, dual-scroll turbo. Autocar predicts the other variants will likely debut in the next iteration of the 3 Series and make their way through other 28i models shortly afterward.