Home Green Cars 9 : Hybrid Cars 9.9 Subaru Subaru: Environmentally Friendly / Green Hybrid Cars 9.9  Subaru B5-TPH Concept: In 2005 Subaru introduced the B5-TPH concept car. The car contained a new hybrid system called the Turbo Parallel Hybrid (TPH) power train. Engine and other details required. Electrical power is provided to an electrical motor by a manganese lithium-ion battery pack.  In addition to propelling the wheels when required, the motor can also function as a generator and recharge the battery during regenerative braking.   [ Back ]