BMW released a new teaser video for its new X6 variant which is said to be opening a new chapter in BMW M history. By that they mean it is the first diesel-powered M car. Called the M50d, it is actually a super diesel X6 powered by a tri-turbo straight-six developing 380 hp and 545 lb-ft of torque (740Nm). It’ll do 0 to 100 km/h (62 mph) in 4.9 seconds. Visually the car gets revised front-end and new taillights.

Watch the teaser after the jump.