For 1930, Dodge took another step up by adding a new eight-cylinder line to replace the existing Senior six-cylinder. This basic format of a dual line with Six and Eight models continued through 1933, and the cars were gradually streamlined and lengthened in step with prevailing trends of the day. The Dodge Eight was replaced by a larger Dodge DeLuxe Six for 1934, which was dropped for 1935. A long-wheelbase edition of the remaining Six was added for 1936 and would remain a part of the lineup for many years. To enhance production, in 1932 Chrysler built a factory in Los Angeles, California where Chrysler, DeSoto, Dodge and Plymouth vehicles were built until the factory closed in 1971.