Mercedes-Benz introduced their Mannheim series of cars in 1929. Named after the German city, these luxury grand touring cars were built using two separate chassis designations. While all variants were offered on the W10 platform, a special final run of 380 S variants featured an improved suspension so innovative that Mercedes decided to designate it with its own chassis code, W19. In terms of powerplants, the 350 and 370 variants were fitted with an inline 6, while the 380 variants were powered by a straight eight engine. The Mannheim was in production until 1934.