BMW is now expanding the new generation of the world's most successful business sedan, the BMW 5 Series, with the addition of another M Performance model. The new BMW M550d xDrive is fitted with the most powerful diesel engine ever offered in a BMW 5 Series model. (combined fuel consumption: 5.9 l/100 km*, ** (Touring: 6.2 l/100 km*, **), combined CO2 emissions: 154 g/km*, ** (Touring: 163 g/km*, **), exhaust emission standard: EU6.)