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Kenworth's hybrid tractor is based on the T370, ... From the February 2009 issue of Heavy Duty Trucking. Read more about Test Drive. About the author. Tom Berg. Former Senior Contributing Editor.
Peterbilt also is developing two heavy-duty hybrid configurations: a Model 320 Hydraulic Launch Assist (HLA) vehicle for vocational and stop-and-go applications, and a Model 386 Hybrid Electric ...