PASADENA, CA – Navistar International Corporation, a truck and engine producer, accepted the 2007 Blue Sky Award from WestStart-CALSTART for its contributions to the commercial development of diesel-hybrid technology. This award is presented each year by WestStart-CALSTART, an advanced transportation technology industry organization working to support and accelerate the growth of companies developing clean and energy-efficient transportation technologies.

Navistar’s contributions to advanced diesel-hybrid technology include:

• Bus subsidiary IC Corporation’s partnership with Enova Systems, Inc., to develop the nation’s first hybrid school bus. Coupling an International MaxxForceTM 7 engine with an 80 kW diesel-electric hybrid powertrain, the bus can use both diesel and electric power in a highly efficient manner.
  

• IC’s securing the contract to supply the nation’s first commercially available hybrid school buses from the Advanced Energy consortium, which represents school districts, state energy agencies, and student transportation providers in 11 states.
  

• IC’s announcement in October 2006 that it is launching a new line of diesel-electric hybrid commercial buses that use the Enova system.
  

• Navistar’s partnership with the U.S. Environmental Protection Agency (EPA), the U.S. Army, UPS, and Eaton Corporation to develop the first-ever series diesel hydraulic hybrid urban delivery vehicle.
  

• Navistar’s development with Eaton of the International Diesel-Electric Hybrid Truck, which uses an electrified power supply that allows the vehicle to be driven in electric-only mode. This hybrid commercialization project, which brought together truck fleet users, truck makers, technology companies, and the U.S. military, was sponsored by the Hybrid Truck Users Forum (HTUF) established by WestStart-CALSTART.