PONTIAC The Pontiac brand was introduced by General Motors in 1926 as the companion marque to GM's Oakland division, and shared the GM A platform. Purchased by General Motors in 1909, Oakland continued to produce modestly priced automobiles until 1931, when it was renamed Pontiac. In the hierarchy of GM's five divisions, it slotted above Chevrolet, but below Oldsmobile, Buick, and Cadillac.