AERODYNAMIC - Model 387 Aerodynamics in the Peterbilt Tradition The Peterbilt Model 387 provides superior performance in fuel economy among premium aerodynamic conventional trucks. From the rounded crown of the grille and sweeping lines of the hood and fenders to the contoured visor and roof cap, the Model 387 is designed to optimize airflow around the truck and trailer. Beyond its sleek aerodynamic profile, a set-back front axle configuration provides exceptional maneuverability with a tight turning radius while circuit board technology and multiplexing reduce wiring and improve reliability. Serviceability is enhanced with a 90° hood opening and an advanced high-intensity forward lighting system is integrated into the fenders for outstanding visibility. The Model 387 is Peterbilt’s most fuel-efficient truck and is unsurpassed in terms of quality and reliability. It performs magnificently on the highway, and even better on the bottom line.