Although the finer details are still under wraps, Autocar has been told that the range-topping hybrid model is set to produce the same 805bhp and offer a similar 31-mile electric range as the GT Concept (pictured above and below).
The other versions under development are said to include a base hybrid driveline with 671bhp and a 19-mile range and a mid-range variant with 738bhp and a 25-mile range.
Sources suggest these units' modular nature will allow them to feature in other AMG models, including the successors to the GT Coupé and Roadster.
The hybrid driveline for the production version of the GT Concept uses AMG’s twin-turbocharged 4.0-litre V8 engine, mounted longitudinally up front, in combination with an electric motor sited within the rear axle. The engine can send power to all four wheels, while the motor delivers power exclusively to the rear wheels.
AMG says the motor is networked with a combination of extremely light batteries. These have been developed in partnership with High Performance Powertrains, the British-based AMG sister company behind the 1000bhp petrol-electric driveline of the upcoming Project One hypercar.
The operation of the new petrol-electric powerplant has been derived from the hybrid unit used by the Mercedes-Benz Formula 1 team, with the battery charged while the car is being driven through brake energy recuperation and the aid of the petrol engine.
Formula E tie-up will help AMG
Mercedes-Benz’s entry into the electric Formula E championship in 2018/19 will boost AMG’s development of hybrid and electric powertrains for the future, according to the company's development boss, Drummond Jacoy.