While the notion of an M-tuned SUV may have seemed inconceivable just a few years ago, the BMW X5 M and X6 M are by now a reality. And it's already been hinted that the M-powered SUV family is set to gain a new diesel-powered member.
Bmw X6 M550d
When the official source of a rumor calls it a rumor, the grain of salt grows proportionately. But according to the crew at BMWBlog, the recently teased BMW X6 M550d will come packing 381 horsepower and a pavement ripping 545 pound-feet of torque.