HP2g V8 Hybrid Engine technological achievement has been the marriage of an electric motor into his E85-powered V-8 internal combustion engine, and controls that allow the combined powerplants output to range from more than 400 horsepower to as little as 15 horsepower, depending on what is required at the time by the accelerator. The HP2g Variable Displacement shuts off fuel to cylinders and it also rotating the cylinders of fire. This can go as low as down to 1 cylinder ( after normal engine operation temperature ). The engine is still opening and closing the valves bring in cool outside air which is introduced to a HOT CYLINDER. This allows the air to expand making the engine = STIRLING ENGINE In Testing Gas Vehicles are getting a 20-22% gain and in Diesel Vehicles are receiving a 30-33% increase in fuel economy!