New 2024 Peterbilt 389 Review. But back to the little details of form and function that make the new 579 special. Blink and you'll miss it.

The 389 incorporates new aerodynamic features such as modeled bumpers, external air cleaner trim panels, soft curve fairings to battery boxes and a proprietary roof fairing while maintaining. Peterbilt’s new model 589 maintains practically all the design features found in its predecessor, the model 389.