Last year, the 760—or more correctly, the M760i xDrive—signified a 12-cylinder model with 600 horsepower. That engine is not available in the new model, and the 760 designation now signifies the twin-turbocharged 4.4-liter V-8 that formerly powered the 750i xDrive.
In this new incarnation of the 760i, the engine has been uprated from 523 to 536 horsepower and endowed with a 48-volt hybrid system that adds an electric motor to the eight-speed ZF transmission. This motor can provide only 18 horsepower but up to 148 pound-feet of torque. That’s enough to achieve nearly instantaneous restarts after an idle stop.