The Buick Six was a range of cars introduced in 1925. The Buick Six was produced in two main variants, the Standard Six and the higher tier Master Six. The Six was named after its inline six engine. It is common to see these cars listed with 'Year - Body Style' designation. An example is the 1927 Buick Model 27x54 Master Six Roadster, where 27 is the year, and 54 is the roadster body style. For the 1929 model year, Buick Six cars were commonly labeled by their chassis length (116, 120, 121, 129). Production of the Buick Six continued until 1929.