Peterbilt

American manufacturer of medium- and heavy-duty trucks

Peterbilt Motors Company is an American truck manufacturer specializing in the production of heavy-duty and medium-duty commercial vehicles. The namesake of company founder T. A. "Al" Peterman, it was established in 1939 from the acquisition of Fageol Truck and Motor Company, and has operated as part of PACCAR since 1958. Competing alongside sister division Kenworth Truck Company, it sustains one of the longest-running marketplace rivalries in American truck manufacturing.

from Wikipedia