PETERBILT MOTORS COMP ANY  Peterbilt’s vocational trucks earned the highest ranking in the 2011 J.D. Power and  Associates* Heavy Duty Truck Customer Satisfaction Study SM . Peterbilt achieved a  record 14% Class 8 market share in the U.S. and Canada. Peterbilt celebrated 72 years of leadership in the North American transportation industry by introducing  many new products delivering enhanced features, low cost of ownership and exceptional fuel efficiency.  The Peterbilt Model 386 liquefied natural gas (LNG) truck  earned the Environmental Protection Agency (EPA) SmartWay®  designation — the industry’s first alternative fueled Class 8  vehicle to meet the stringent fuel-saving, low-emission  requirements. The Peterbilt Model 386 LNG offers horsepower  and torque equal to a diesel-fueled engine while reducing greenhouse gas emissions by 20%. This exciting new  product extends Peterbilt’s family of alternative fueled trucks that also includes Models 320, 365, 367 and 388. Peterbilt redesigned the medium duty cabover Models 210 and 220, to enhance driver productivity in  congested urban environments. These new trucks optimize maneuverability and high volume payload capacity  with a lightweight chassis, an excellent turning radius, exceptional visibility, and the fuel efficient PACCAR PX-6  engine. Peterbilt delivered over 4,300 trucks with its proprietary “SmartNav” telematics system. SmartNav integrates  truck navigation, Internet access, vehicle diagnostics and audio into a single in-dash touch screen that enhances  productivity. Peterbilt’s highly efficient manufacturing facility in Denton, Texas, incorporates an innovative robotic chassis  paint facility and state-of-the-art PACCAR Production System (PPS). The Denton facility has produced 360,000  Peterbilt trucks since it opened in 1980. Peterbilt achieved its highest production rate ever at the Denton Plant  in 2011. The Peterbilt dealer network expanded to a record 260 locations throughout the U.S. and Canada. Peterbilt combines state-of-the-art aerodynamics with the industry-leading performance and  fuel economy of PACCAR’s MX engine to deliver outstanding profitability. The “Class” of the  industry has always appealed to owners and drivers who demand uncompromising quality  in a heavy-duty truck. Peterbilt Class 8 vehicles are now standard with front disc brakes, offering a 30% reduction in stopping  distances and 100% longer maintenance intervals. Peterbilt’s Extended DayCab adds 10 inches in cab length for  improved driver comfort and storage space. Peterbilt introduced a lightweight option package for its full range  of line haul and pickup and delivery trucks that saves up to 1,500 lbs. Customers can maximize payload,  performance and fuel economy with the lightweight PACCAR MX engine, composite springs and aluminum  components. Peterbilt installs the PACCAR MX engine in 23% of  its Class 8 vehicles. * Peterbilt received the highest numerical score among vocational segment Class 8 trucks in the proprietary J.D. Power and Associates 2011 Heavy Duty Truck Customer Satisfaction  Study$^{SM}$. Heavy-Duty study based on 1,651 primary maintainers of 2010 model-year Class 8 heavy-duty trucks and measuring 5 manufacturers. Proprietary study results are based  on experiences and perceptions of primary maintainers surveyed in April-May 2011. www. jdpower.com