Well advanced compared to their competition, the Grand Prix cars launched in the early 1930s by Mercedes-Benz and Auto Union, nicknamed the “Silver Arrows” because of their unpainted aluminum bodies, are the stuff of legend. The cars were considerably faster than other Grand Prix racers of the day, sometimes reaching speeds in excess of 230 mph, and by 1937 they were making close to 600 horsepower, a feat that would not be duplicated in Grand Prix racing until the 1980s.
One of the most beautiful of these was the Auto Union Type D, an example of which has just been recovered by Audi, the Auto Union in its present form. The particular example is a twin-supercharger version developed and raced in 1939. clicpic
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