New 12.8-liter MP8 dieselin highway type MaxiCruise tuning makes up to 485 horsepower. It's strong and clean-burning. Maxidyne and Econodyne versions have somewhat different operating characteristics.
Mack Trucks Inc. said yesterday that Chrysler Group Transport has ordered 325 MACK Pinnacle Model DayCab highway tractors, in effect replacing Chrysler's U.S. and Canadian fleets. Chrysler Group ...