FORT WORTH, Texas — The infield lanes of Texas Motor Speedway provided the setting for Peterbilt Motors Co. to introduce members of the media to its new lineup of Classes 5-8 trucks.

Peterbilt Motors Co. announced Yellow Corp. placed an order for 1,222 Peterbilt Model 579s, the single-largest order of Peterbilt trucks equipped exclusively with a Paccar powertrain.

Dobbs Truck Group announced it broke ground on its latest Peterbilt Motors Co. dealership, as well as Dobbs Truck Group corporate office in Sumner, Wash.

Peterbilt Motors Co. announced two new medium-duty box truck models — the 535 and 536 — aimed at the lease and rental segment; and two other models — the 537 and 548 — intended for the vocational “Class 7/8 market” that allow for multiple body builder integrations.

Paccar Inc. posted lower fourth-quarter net income and revenue while achieving record quarterly parts revenue and notching its record market share for medium-duty vehicles sold in the U.S. and Canada.

Peterbilt Motors Co., a Paccar company, is headquartered in Denton, Texas, where its primary manufacturing facility is also located. Here are photos of Peterbilt trucks.

Peterbilt Motors Co. announced an introductory lease offer on its Model 220EV through PacLease. The zero-emission cabover truck is intended for the Class 6 and Class 7 segments.

Peterbilt Motor Co. is recalling 35,671 trucks to repair an issue with battery cables on certain models, according to a March 18 notice from the National Highway Traffic Safety Administration.

Peterbilt Motors Co., a unit of Paccar Inc., announced the first 71 dealers to earn its Platinum Service Center certification.

Peterbilt Motors Co. announced the opening of its fifth Peterbilt Technician Institute campus, in Rancho Cucamonga, Calif.