Navistar is unveiling its first hybrid tractor -- the International DuraStar -- at the Hybrid Truck Users Forum in South Bend, Ind. (Photo: Business W

Tue Oct 14, 11:23 AM
Navistar is unveiling its first hybrid tractor -- the International DuraStar -- at the Hybrid Truck Users Forum in South Bend, Ind. (Photo: Business Wire)

Navistar is unveiling its first hybrid tractor -- the International DuraStar -- at the Hybrid Truck Users Forum in South Bend, Ind. (Photo: Business Wire)