Chris Harris Test Drives BMW's Tri-Turbocharged and Diesel-Powered M550d xDrive Sedan

The new BMW M550d xDrive may be a forbidden fruit in the largest English-speaking markets of the world but that doesn't make the diesel-powered sports saloon any less interesting.

In the latest edition of his online show, DRIVE, Chris Harris sat in the driver's seat of the new BMW M Performance car and took it for a test drive.

Before you watch the video after the break, we'll remind you that the M550d xDrive sports a 3.0-liter inline-six diesel with three turbochargers sending 381PS (375bhp) and a monstrous 740Nm (546 lb-ft) of peak torque to all-four wheels through a standard 8-speed automatic for a 0-100km/h (62mph) sprint time of just 4.7 seconds.

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