Peterbilt Motors Co. has unveiled a restyled version of its Model 579 flagship on-highway truck that offers a 7% fuel economy improvement compared with the truck it replaces, which was launched in ...

The New Model 579 UltraLoft is the first major redesign for the truck by Peterbilt since the 579’s debut in 2012. Photo: Jack Roberts It felt good to be behind the wheel of a brand-new tractor-trailer ...

Peterbilt made a mistake with the new Model 579. As Jake White, Peterbilt product marketing manager, explained to me during our pre-release drive through the rolling prairie of North Texas in late ...

In a sense, Peterbilt engineers never get to build a true “clean sheet” design when they start work on a new truck. Those engineers might disagree with that statement, but as I gazed at the fully ...

Peterbilt's new configurator app allows users to build their own Model 579. Peterbilt customers and enthusiasts can build their own Model 579 – choosing from a range of specs, colors and ...

DENTON, Texas — In the 75 years that Peterbilt has been building trucks, fuel economy has never been more important than it is today. So this is a big year for the truck maker, not only because it’s ...