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BMW Z4 Roadster
First turbo four model will arrive this fall

Earlier this year, we reported that BMW's normally aspirated inline-6 engines will be ushered out and replaced by a new family of turbocharged four-cylinder engines. BMW today confirmed that four-cylinder power would return to U.S.-bound BMWs after a 10+ year absence. 

The first model to get BMW's new 2.0-liter TwinPower Turbo four-cylinder engine will be the Z4 sDrive28i Roadster (say that five times fast). The engine develops 240 hp and 260 lb-ft of torque (30 percent more torque at 1,500 fewer RPMs than the naturally aspirated 3.0-liter inline-6).

BMW says that the new turbo four will be 20 percent more fuel efficient than the inline-6 when paired with the 8-speed automatic transmission. We're sure that there are fuel efficiency gains to be made with the 6-speed manual transmission as well, but it's likely nowhere near 20 percent (or else BMW would have mentioned it in the press release).

The Z4 sDrive28i Roadster will arrive in showrooms this fall, and the turbo four will likely filter down to other BMW models soon after.





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