During February’s Speedweeks at Daytona International Speedway, Mack Trucks and NASCAR announced a multi-year extension of their partnership, continuing the designation of Mack as the “Official Hauler of NASCAR.”

The partnership will see 11 all-new Mack Pioneer 76-inch High-Roof Sleeper models added to the NASCAR fleet.

The addition of the Pioneer models marks the latest evolution of NASCAR’s Mack fleet, which began with Pinnacle models in 2016 before transitioning to Anthem models in 2018. Six Mack Anthem models will remain in service as part of the fleet, continuing to support NASCAR’s operations throughout the racing season.

“For nearly a decade, Mack has proudly served as the Official Hauler of NASCAR, and this partnership extension reinforces our shared commitment to performance, reliability and excellence,” says Jonathan Randall, president of Mack Trucks North America.

“The Mack Pioneer represents the most advanced highway truck we’ve ever built, and there’s no better stage to showcase its capabilities than NASCAR’s demanding schedule.”

The Mack Pioneer, which began production in 2025, is Mack’s most aerodynamic and fuel-efficient highway truck to date, delivering up to 11% improved fuel efficiency compared with previous models.

NASCAR’s custom-spec’d Pioneer models are powered by the Mack MP13 engine producing 515hp and 1,900 lb-ft. of torque, paired with the Mack mDRIVE 12-speed overdrive automated manual transmission.

The 76-inch High-Roof Sleeper configuration features the innovative FlexSuite system with premium mattresses, providing drivers with maximum comfort during NASCAR’s gruelling travel schedule.

“Mack Trucks has been an essential partner behind the scenes of NASCAR for nearly a decade, delivering the reliability and performance required to keep our sport moving week after week,” says Michelle Byron, executive vice president and chief partnership and licensing officer, NASCAR.

The NASCAR schedule spans 10 months and 36 points races across the United States, and the Mack trucks are relied on to efficiently and safely transport critical race equipment, technology and facilities to each venue.