2018 BMW M550d 0-100 km/h Run

The 2018 BMW M550d xDrive model comes with the brand new B57S 3-liter quad-turbo diesel engine good for 400 HP and 760 Nm of torque. How does that translate into neck-breaking acceleration? Well, BMW claims the M Performance model can go from null to 100 in 4.4 seconds. Is that really doable? Check this video to find out.