The pick-up truck was driven by Professor Jameson Hyde White.
The pick-up is a dark blue single-cab flatbed truck with chrome wheels.
Scooby-Doo, Where Are You!
Professor Hyde White was transporting the Black Knight to the County Museum with the pick-up truck. On the way, the Black Knight came to life and attacked him. Shaggy and Scooby found the truck later that night, with the Black Knight armor sitting in the driver's seat. They alerted Fred, Daphne, and Velma, who found no trace of Hyde White but identified the intended destination for the truck and its cargo. The gang delivered the truck and its payload to the museum the following day.