BMW brings diesel to the U.S. with its 335d, a 3 Series using a twin-turbo, inline, six-cylinder engine.

Caption:Photo:Corinne Schulze/CNET
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Many high-tech touches are employed around the car, such as these LED turn signals.

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Although it uses a diesel engine, the car looks the same as a standard 3-Series sedan.

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The engine has a configuration similar to that of the 3-liter, twin-turbo, gas engine, but uses common rail injection for the diesel fuel. It makes 265 horsepower and 425 pound-feet of torque.

Updated:Caption:Photo:Corinne Schulze/CNET
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Our review car was wrapped in BMW's Efficient Dynamics slogan.

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This car wasn't equipped with the Sport package, meaning no sport-tuned suspension. As a result, it didn't perform as well in the corners as other BMWs we've tested.

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The emissions technology keeps the tailpipe fairly clean. Here, the engine is idling but there is not a trace of black smoke.

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In the cabin of the 335d, there's very little to indicate that this car is powered by diesel.

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The multifunction steering wheel is standard, with buttons for voice command and audio.

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With the diesel engine, the redline is at 5,000 rpm. BMW also includes an instant economy gauge, which used to be a standard feature.

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The six-speed automatic has a good sport program, making appropriate downshifts before corners. There is also a manual mode.

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The new iDrive controller is similar to the old one, although its joystick operation is restricted to four directions.

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The navigation system, as before, includes live traffic information and automatic rerouting.

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The 335d has optional iPod integration, which works very well, and also includes a simple USB interface.

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Bluetooth phone support is excellent in the 335d, letting you dial with this interface or selecting names from your cell phone's contact database.

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A sonar-parking system shows how close the car is to objects fore and aft.

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