The first generation of Cadillac V-12 was introduced for 1931. Known as the Series 370, the first generation of V-12 was offered in a wide range of body styles, and was also available with coachbuilt bodies. The Series 370 was fitted with a 6.0L V12 engine, and was in production until 1935, when it was replaced by the Cadillac V-12 Series 80/85.