BMW showed us a glimpse of the future of the 7 Series with the Concept 7 Series ActiveHybrid. The ActiveHybrid improves on the 450 lb-ft of torque supplied by the 4.4-liter twin-turbo powerplant with the addition of an electric motor that can add up to 155 lb-ft of torque on demand for a total of about 605 lb-ft of torque. Fuel consumption is reduced by up to 15 percent.