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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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Whats the point
By FITCamaro on 4/18/2011 3:59:22 PM , Rating: -1
Of a roadster with a freakin automatic?

Good to see that BMW now has a turbo-4 with sligthly less power than an Ecotec of 4-5 years ago.




RE: Whats the point
By Iaiken on 4/18/2011 5:05:50 PM , Rating: 2
This is actually their second low displacement engine to hit those figures.

The 1.6L Prince engine can hit an easy 211hp and 192lbft (more during over-boost) dates back to the end of 2006 and was first fielded in 2007.

What sucks is that we'll never see the xDrive23d power-train that puts out 201hp and over 300lbft at idle.


RE: Whats the point
By Spuke on 4/18/2011 8:31:04 PM , Rating: 2
quote:
Good to see that BMW now has a turbo-4 with sligthly less power than an Ecotec of 4-5 years ago.
Noticed that, huh? :) Another 20 hp could be had easily without affecting mileage much but I'm going to guess that they want their owners to repeatedly get that 20% increase and then some.


RE: Whats the point
By MrTeal on 4/19/2011 9:54:21 AM , Rating: 1
That's not unheard of. Even the Ferrari 458 Italia doesn't offer a manual transmission, and it's more of a pure sports car than anything BMW produces.


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