GMC stands for General Motors Company , specifically referring to the truck and SUV division of General Motors. Originally, GMC was known as the General Motors Truck Company when it was formed in 1911 and adopted that name in 1912 as it focused on producing trucks. Over time, the "Truck" part of the name was dropped, and today GMC is recognized as a premium brand within General Motors, specializing in trucks, SUVs, and vans

. Historically, GMC traces its roots back to the Grabowsky Motor Company founded by Max and Morris Grabowsky in 1900, which later became Rapid Motor Vehicle Company before being acquired by General Motors and rebranded as GMC

. Despite some myths, the official and widely accepted meaning of GMC is General Motors Company or General Motors Truck Company during its early years

. In summary:

• GMC = General Motors Company (modern usage)
• Originally: General Motors Truck Company (1912)
• Founded from earlier companies including Grabowsky Motor Company and Rapid Motor Vehicle Company
• A division of General Motors focused on trucks, SUVs, and commercial vehicles