Only one month since its announcement and Sport Auto's Christian Gebhardt has already gotten hold of the new BMW M550d xDrive sedan. "Torque", "traction" and "awesome" are the three words Gebhardt uses to describe the diesel all-wheel drive M Performance Automobile.

Featuring the newly developed tri-turbo 3.0-liter six-cylinder in-line diesel engine, the M550d is rated at 381 HP (280 kW / 375 bhp) between 4,000 - 4,400 rpm. But the real eye-popper is the maximum torque figure of 740 Nm (546 lb-ft) available at a relatively low 2,000 - 3,000 rpm. Redline is 5,400 rpm.

The result is a 0-100 km/h time of 4.7 seconds making it possibly the fastest diesel sedan on the market. Check out the video to see the speedo/tachometer shot of Gebhardt's 0-250 km/h (155 mph) test.

Starting price in Germany for the M550d xDrive is 80,800 euro. Compared to the BMW M5 which starts at 102,700 euro, the M550d could be a viable alternative for those looking for a little more value and efficiency (6.3L/100km ; 44.8 mpg imp) as well as a less aggressive super sedan image.

The M550d sales begin in Germany on May 12.

Gallery: BMW M550d xDrive 0-250 km/h test by Sport Auto

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