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Discussion Starter #1
Expect to see smaller engines for BMW’s and Volkswagen’s future models, as high fuel prices and greater environmental concerns are pushing buyers towards engines with lower displacements and carmakers would be foolish to ignore the trend. VW’s plans to introduce a new three-cylinder variant of the Golf appear to be going ahead, according the carmaker’s development chief Ulrich Hackenberg. As a part of this environmental push, VW will also introduce hybrid variants based on its TwinDrive technology.

The future of the three-cylinder engine for the Golf looks optimistic, with Hackenberg stating that the company is developing the engine further but that it has a "great future". He also mentioned the fact that the Golf could be fitted with some form of electric propulsion - although sales would likely be focused on "megacities in China and the U.S."

BMW, too, is looking to downsize to three-cylinder engines for its base models. Sources close to both companies revealed the plans to Germany’s Auto Motor und Sport. For BMW, its three-cylinder engine will first be used in the next-generation 1-series due in 2011. The engines are currently in a testing phase and are still about two years away from launch.

While BMW is yet to confirm the reports, the new three-cylinder engine will displace 1.35L and output between 120hp (90kW) and 180hp (135kW) in various guises. The carmaker is also expected to launch a new four-cylinder engine to replace many of its six-cylinder units, which will displace 1.8L and output up to 240hp (180kW).

BMW is considering bringing this four-cylinder engine to the U.S. and Mercedes Benz is also thought to be planning a similarly small engine for its C-Class in the U.S. as well. Drivability will be key to their success, and to ensure adequate performance twin-turbocharging and direct-injection technology will be essential.
 

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What's next 2 cylinder engine's? About bmw 1.8 240 horse power sounds very nice , but can't expect to see better MPG then the 3 series that they have right now.
 

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240 hp on a 1.8L 4 piston engine will probably be turbo. Having the turbo itself will decrease the MPG, so I dunno...
 

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Discussion Starter #4
TurboPower


How low can you go? It seems like that those are the five words BMW lives by when planning future engine displacements. Recent reports suggest that BMW’s EfficientDynamics program is working on a new range of 3-cylinder gasoline engines for the next-generation 1-Series, 3-Series and the upcoming BMW Z2.

According to Sky Motoring, the new 3-cylinder engines will be turbocharged. Range-topping engines on the three mentioned models will be a 321-hp 1.8L 4-cylinder turbocharged engine.

The engines are currently under development and are about two years away from production.

Here’s a list of the new line-up:
x16i – 1.35L , 3-cylinder, 163-hp/140 lb-ft
x18i – 1.35L, 3-cylinder, 201-hp/162 lb-ft
x20i – 1.35L, 3-cylinder, 241-hp/192 lb-ft
x23i – 1.8L, 4-cylinder, 273-hp/220 lb-ft
x25i – 1.8L, 4-cylinder, 321-hp/258 lb-ft​
 
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