The NSU Rennfox Dolphin, and Rennmax Blue Whale: streamlined motorcycle models which scooped many prestigious victories in the 1950s. The Neckarsulm-based company, NSU, applied its early wind tunnel research into aerodynamics on the race track and in record-setting runs. In the final episode on the history of NSU to mark the brand’s 150th anniversary, Audi Tradition presents some of the heritage brand’s unique vehicles.
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