Kenworth will begin full production of medium duty, diesel-electric hybrid trucks this summer. Kenworth offers the fuel-efficient, hybrid option on its new T270 Class 6 and T370 Class 7 conventional models and will produce the trucks at the PACCAR plant in Ste-Therese, Que. Kenworth’s goal is to enhance fuel economy by up to 30 percent in pickup and delivery applications and up to 50 percent in utility operations. Purchasers of Kenworth hybrids equipped with a PACCAR PX-6 engine and the Eaton hybrid system, may qualify for a maximum federal tax credit of $6,000 (Class 6) and $12,000 (Class 7).