The Beaumont began life as a trim level of the Chevrolet Acadian from 1962 to 1965. During this time frame, the Acadian was based on Chevrolet’s Chevy II (Nova), and was sold primarily through Pontiac and Buick dealers throughout Canada. This is why many incorrectly think that the Beaumont and Acadian are Pontiac derived. The 1962 Acadian was available as either the base-model Invader, or the deluxe Beaumont model. The Beaumont gave buyers a higher level of trim options, and upgraded luxury items like foam-cushioned rear seats, a horn ring on the steering wheel, rear passenger armrests, and dome light switches for the front doors. A six-cylinder engine was the only option.
When 1964 and 1965 rolled around, an Acadian Beaumont that was based on the American-made Chevelle platform was released to compliment the Chevy II-based Acadian. These cars are true Chevrolet cars, with only minor trim differences. The Chevelle-based Beaumont did utilize a Pontiac Tempest/LeMans-based instrument panel. By this time, the Beaumont was continuing to gain popularity, and was available in four sub-models of the Acadian; the Beaumont Standard, Beaumont Deluxe Standard, Beaumont Custom, and Beaumont Sport Deluxe.
Article courtesy of Street Muscle Magazine, written by Randy Bolig.