2018 BMW M550d xDrive Has Four, Yes Four Turbos And 400 Horses. And It’s A Diesel

BMW is doubling its 5-Series M Performance models with the new diesel-powered M550d xDrive that follows the gasoline-fueled M550i xDrive. Available in both sedan and the more practical Touring (station wagon) body styles, the M550d comes with standard rear-biased all-wheel drive, but it’s what lies under the hood that makes this 5er special. Read more »