Overall styling and appearance of the V-12 Model 370-B was identical to the V-8 except for the emblems.

Mechanical features were the same as the V-8 except for minor differences dictated by the increased power and weight (gear ratios, tire size, vacuum assist on brakes, battery/generator capacity). Dual exhaust system had tuning chambers in mufflers rather than attached to tail pipes. Dual ignition coils were mounted in top tank of radiator.

The engine was basically the same as the 370-A of 1931. Fuel feed changed from vacuum tank to mechanical pump. New Cuno disc type self-cleaning oil filter was mounted at right hand side of clutch housing, connected to starter pedal to rotate discs each time pedal was depressed. New Detroit Lubricator dual carburetors were first departure by Cadillac in twenty years from a Cadillac-Johnson carburetor.