Traveling beyond the electric-only range, a 2.0-liter Atkinson-cycle engine took over. Generating 141 horsepower and 129 pound-feet of torque, the 2013 C-Max Energis gasoline range extender channeled ...

But Subaru has never engineered one for the Forester. Subaru’s new Forester hybrid uses the Atkinson Cycle 2.5-liter flat-four engine. The Atkinson Cycle delays the closure of the intake valve ...