Dennis Clayton "Duke" Nalon was an American racing driver. He competed in midget car, sprint car, and Indy car races. Nicknamed "The Iron Duke," Nalon was part of the "Chicago Gang" along with Tony Bettenhausen and others. These racers toured tracks in the Midwest and East Coast of the United States.

The Mercedes-Benz W154 was a Grand Prix racing car designed by Rudolf Uhlenhaut. The W154 competed in the 1938 and 1939 Grand Prix seasons and was used by Rudolf Caracciola to win the 1938 European Championship.