Buick is the name of a car brand that is manufactured in the United States of America, Spain, Canada, and 
China by the General Motors Corporation. The cars are sold in the United States of America, Canada, Israel, Taiwan, and China. Since Oldsmobile met its demise in the year 2004, Buick has emerged as the only entry level luxury brand belonging to the General Motors Corporation. The General Motors subsidiary Saab in Sweden fills a similar segment.
Buick was initially launched as an independent car maker, the Buick Motor Company, in the year 1903 by a Scottish American man named David Dunbar Buick in the city of Flint, Michigan. The following year, the company was taken over by James Whiting, who hired William C. Durant to manage the company. Buick then sold his stock for a small sum upon his departure, and died forty years later in modest circumstances.
Durant proved to be an excellent manager. Under his expertise, Buick would go on to become America’s biggest automobile manufacturer. Thanks to his success, Durant was able to embark upon a series of corporate acquisitions. Eventually, he called his new corporation General Motors.
Initially, General Motors manufacturers competed against one another. But Durant soon put an end to all that. He decided instead that every division of General Motors would target one particular buyer class. Buick was positioned near the top, alongside Cadillac.
In the year 1929, the Marquette sister brand to Buick was launched. It was meant to provide a middle ground between Buicks and Oldsmobiles. The concept did not prove to be successful, however, and the Marquette line was discontinued the following year.
Buicks are still one of the top cars in the General Motors line up. Buick customers are usually not quite wealthy enough to buy a Cadillac, but are otherwise well off.
Above - The Bucik hybrid annouced at the Shanghai motor event