BMW its not the same anymore. Now it has a Sharper Appearance that makes it even better. AC Schnitzer boost the 575PS (567hp) 4.4-liter twin-turbo V8 to 650PS (641hp), with the tuner offering a two-year warranty for the upgrade. At the front end, the X6 also gets some carbon fiber air curtain inserts which work perfectly with the aggressive lines and the immaculate white. This is why BMW X6 M is by far the most wanted BMW car.