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Automotive giant General Motors is to team up with Birmingham, Ala-based Autocar Industries to develop a range of hydrogen fuel cell-powered heavy-duty vocational trucks, the companies said.

As the rate of adoption of driver-assist safety technology continues to rise with over-the-road fleets, the vocational truck market — fleets consisting of dump trucks, utility trucks and public transit vehicles — is also experiencing the increase of such industry applications.

Autocar is so proud of its new model dump truck, the DC-64D, the company wants people to think of it by the term it’s planning to trademark — Badass.

Cummins Inc. announced its X12 engine will be available in Autocar’s ACX model beginning in the fourth quarter.

ORLANDO, Fla.— Industrial auctioneer Ritchie Bros. jammed row after row of used equipment in all shapes and sizes riding on tires or treads onto a 232-acre site here to launch its annual premier auction in February, the first since acquiring rival IronPlanet.

An aging driver population and the addition of vocational-specific features are the top reasons fleet managers and industry executives cited for growth in two-pedal transmission use among vocational truck buyers.

YOUNTVILLE, Calif. — Daimler Trucks North America said it is reaping returns in sales of heavy- and medium-duty vocational trucks based on the investments and planning that started during the depths of the recession.