Auto Union’s Wanderer brand constructed three, Ferdinand Porsche designed, aluminum-bodied W25K roadsters for the 1938 Liege-Rome-Liege rally. Equipped with inline, 6-cylinder alloy engines producing just 70 bhp, the team managed to capture the team prize in the 1939 event, just before the outbreak of WWII. All three examples were lost during the war, but recreations were constructed by Audi Tradition.