: The 127-inch BBC (bumper-to-back-of-cab) dimension provided the iconic long-hood look that remains the most sought-after configuration for custom show trucks today.

: The truck featured "beehive" style marker lights and polished headlight housings that gave it a classic, retro look even while new. Interior: The "UltraRide" Experience

: Many 379X units were spec'd with heavy-hitting engines of the era, such as the Caterpillar C15 Accert .

Inside, the 379X was just as distinct. Peterbilt marketed it with a "rugged but refined" aesthetic: