Heres a new concept, how about a Escalade Hybrid?

GM’s advanced two-mode hybrid technology featured in the Escalade hybrid is expected to deliver a fuel consumption improvement of up to 32% in the city and 25% in combined driving while retaining all of its utility and amenities.

The Escalade Hybrid uses GM's two-mode hybrid system that is made up of an advanced electrically variable transmission (EVT) and a 300-volt nickel metal hydride battery pack. These systems work with the standard 6.0-liter V8 gas engine.

The Escalade Hybrid delivers 332 horsepower and 367 pound-feet of torque. The engine features GM's active fuel management system, which shuts off half the cylinders when less power is needed in situations such as highway cruising. There are no exterior changes to the Escalade Hybrid, except for badging. It may also be one of the few hybrids in the world with 22-inch wheels.

In the cabin, the major change comes in the second row, where you can only get the hybrid with a bench seat and not captain's chairs. The rear seat has been modified because the battery pack is located under the floor of the second row.

Its cutting-edge hybrid technology enables driving at low speeds on electricity alone and it also allows the engine to operate on just half of its cylinders for longer periods, returning exceptional fuel economy in both city and highway driving.