In 1933, Audi, Horch, Wanderer and DKW teamed together with Ferdinand Porsche and Adolf Rosenberger to create Auto Union. The goal of the new company was to enter the 750kg Grand Prix with a controvertial mid-engined race car. The Type-C was the third evolution of Auto Union's racecar which dominated Grand Prix races in 1936 and 37. Auto Union competed with Alfa in the 12C-36, Maserati in the V8RI and Bugatti in the 59/50 at the 1936 Grand Prixs. The Type-C won 6 victories that year with Bernt Rosermeyer taking the overall victory. In total, the Type C pulled in 10 victories over the two years it was raced.
Ferdinand Porsche designed the Type-C and was the driving force in having the mid-engine design. With no driveshafts in the mix, this allowed for the driver to be mounted lower in the car. The fuel tank was centerally located to help balance the weight distrobution. Dispite all efforts, 60% of the weight still stood on the rear wheels.
Another design focus of the car was to use the largest possible engine within the 750kg weight limit. Auto Union suceeded well with this goal and created the largest capacity engine to compete on 1936 and 37 grand prix races. The large 6 liter engine had a weak boost of 10lbs per square inch. A roots supercharger was attached to increase boost pressures and work as a displacer.
The high power to weight ratio, uneven weight distrobution and the swing-axle suspension system made the Type C oversteer heavily. Drivers of the car also had a hard time gauging slip with the extremely forward driving position. Cornering was a real challenge. Only the master, Bernt Rosermeyer, was able to drive the Type C to its full potential.
Auto Union Type-C Victories:
May10/36 Tripoli GP-Mellaha, Achille Varzi
Jun14/36 Eifelrennen-Nurburgring, Bernd Rosemeyer
Jul26/36 German GP-Nurburgring, Bernd Rosemeyer
Aug15/36 Coppa Acerbo-Pescara Bernd Rosemeyer
Aug23/36 Swiss GP-Bremgarten, Bernd Rosemeyer
Sep13/36 Italian GP-Monza, Bernd Rosemeyer
Jan16/37 Grosvenor GP-Capetown, Ernst von Delius
Jun13/37 Eifelrennen-Nurburgring, Bernd Rosemeyer
Jul05/37 Vanderbilt Cup-Roosevelt Field, Bernd Rosemeyer
Aug15/37 Coppa Acerbo-Pescara, Bernd Rosemeyer
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