The automobiles of the 1930s exhibited a notable change in body design. Longer and lower, these fully enclosed cars featured extended front hoods, tilted windshields (available in 1931), exaggerated curves, and streamlined details. The lowering of the car resulted in smaller windows and the loss of the running board. The boxy cabin of the 1920s car evolved into the rounded rear end of the 1930s car. Note the fender aprons on the rear tires and emphasized curves on the front fenders.
The two following images are typical 1930s automobiles, featuring the elongated body, lowered height, tilted windshield, and exaggerated curves.
The image below demonstrates the evolved profile of the 1930s car.
The image below is an excellent example of a streamlined 1930s design. What is most notable is the outwardly projecting front hood, which extends out past the exaggerated curves of the front fenders and features accentuates the lines of the grille.