The Pontiac brand first appeared under the General Motors umbrella in 1926 before declining sales led to the brand’s discontinuation in 2009. Pontiac’s first model was simply dubbed the ‘Six,’ named after the inline six-cylinder engine that became a stalwart in Pontiac’s line until being dropped in favor of eight-cylinder options, then later revived.  The first Pontiac inline six had an L-head design and 186.5 cubic inches of displacement. By 1932, it had grown to 200.4 cubic inches and could produce 65 horsepower.
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