Cadillac Type 51

The Cadillac V8, introduced as the Type 51 and also as the Types 53, 55, 57, 59 and 61, is a large luxury car introduced in September 1914 by Cadillac as a 1915 model. It was Cadillac's first V8 automobile, replacing the four-cylinder Model 30, and used the all-new GM A platform for the entire series, shared with all General Motors division brands using a 122 inch wheelbase. The Types 53, 55, 57, 59 and 61 were introduced every year through 1923 with yearly improvements, until an all-new platform was substantially introduced.