Buick is one of the pioneering brands of the GM conglomerate, founded in 1908 before General Motors even existed. Buick later served as the second highest luxury tier in the General Motors catalog, falling only behind Cadillac in terms of price and luxury. Buick has also had notable success in auto racing, winning the first-ever race held at the Indianapolis speedway. Buick had immense sales success in the 1930s and 1940s, also introducing some fantastic engines to the American automobile space. Buick became successful in their early years for using engines with an overhead valve design, which was less common in the 1930s. Between the 1930s and 1940s, their main powerplant was the Buick straight-8 engine, ranging from 221-cid to 345-cid. They switched over to the Buick V8 engine design from the 1950s through the 1980s. The Buick Electra, Buick Riviera, Buick LeSabre, Buick Skylark, Buick GSX, and Buick Regal became some of the brand's most successful models in the 1950s and 1960s. Models like the Buick GSX and Buick Regal Grand National cemented Buick as one of the most celebrated manufacturers in the muscle car space.