The bodywork of the sedan developed and built at the Daimler-Benz coachworks in Sindelfingen had increased in size compared with the predecessor model and offered a significantly extended profile mounted on the longer chassis. This was due not least to the more elongated six-cylinder engine. The general public really appreciated the sophisticated interior styling with corduroy fabric. However, particular attention was also paid to the excellent road holding of the newly designed tubular chassis. The "Twin Kidneys" ("Doppelniere") as the radiator grille gave the BMW 303 the striking front profile with a high recognition value for the first time.