The Buick Regal is a mid-size car introduced by General Motors for the 1973 model year. North American production ended in 2004, but production and sales continued in China. For the 2011 model year, Buick re-introduced the Regal to the North American market, positioned as an upscale sport sedan.
For certain model years between 1973 and 2004, the Regal shared bodies and powertrains with the similar Buick Century.
Buick had been the first GM division to bring a personal luxury car to market with its full-size 1963 Riviera but was otherwise slow to react to the developing lower-priced mid-size personal luxury market, which Pontiac created with the 1969 Grand Prix and Chevrolet with the Monte Carlo the following year, 1970. At the same time Oldsmobile added a formal notchback coupe to its intermediate line, the Cutlass Supreme, in 1970 and that model soon became Olds' best selling intermediate. Wanting a model that could be marketed to compete against the Olds Cutlass Supreme as well as the Grand Prix and Monte Carlo, Buick introduced the Regal for 1973, as a top line special coupe in that division's intermediate A-body line, the Century. The year 1973 also marked the introduction of the first major restyling of GM's intermediate A-body design since 1968.