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LONG BEACH, Calif. — Solar technology provider eNow unveiled a 53-foot refrigerated trailer with solar panels mounted on its roof, calling it the first such all-electric solar-based refrigeration system to be deployed.

Class 8 orders in April cleared 34,000, while the swollen backlog from months of strong demand kept them from going even higher, according to ACT Research Co., and others pointed to a parts supply chain under strain.

FRISCO, Texas — The nation’s first self-driving car service for the public will begin here in July.

Paccar Inc. declared a 12% increase to the regular quarterly cash dividend.

Fiat Chrysler Automobiles NV and General Motors Co. have trimmer, high-tech trucks coming this year that will fetch top-dollar prices. For now, the automakers are dialing up discounts on outgoing models.

Retailers, railroads and electricity companies are pressing for U.S. government approval to fly drones longer distances. Regulators, geared to an aviation industry that can take five years to get a new jetliner in the air, are struggling to adjust to the breakneck pace.

LONG BEACH, Calif. — Peterbilt Motors Co. displayed its all-electric Model 579 day cab tractor at the Advanced Clean Transportation Expo, which was held April 30-May 4.

LONG BEACH, Calif. — Dana Inc. and Workhorse Group Inc. showed a concept model medium-duty truck designed for city delivery featuring Dana’s Spicer Electrified, an integrated e-drive axle whose lighter weight allows for higher payloads.

Stemco Products Inc. announced that PepsiCo Inc. will update 1,600 of its trailers with the company’s TrailerTail and EcoSkirt products to support its corporate sustainability targets.