Audi Restores Legendary Auto Union Lucca Record Car








Audi Tradition has meticulously brought back to life the legendary Auto Union Lucca, the streamlined speed machine that once captivated the world by reaching an astounding 326.975 km/h (203 mph) on an Italian road back in 1935. This one-of-a-kind reconstruction, finalized in the spring of 2026, marks the return of a crucial artifact of early Grand Prix engineering to the manufacturer's esteemed collection of vintage automobiles. Affectionately known in its time as a Rennlimousine, or racing sedan, this vehicle now stands proudly among the Silver Arrow lineage, a testament to over three years of dedicated effort by British restoration experts, Crosthwaite & Gardiner.
The original Auto Union Lucca was born from an intense period of engineering advancement during the winter months of 1934 and 1935, as Auto Union fiercely pursued speed records in competition with Daimler-Benz. The vehicle's design drew insights from a preceding record-attempt car and underwent comprehensive wind tunnel analyses at the Berlin-Adlershof Aeronautical Research Institute. Engineers explored various open and closed-cockpit configurations, all in pursuit of minimizing aerodynamic drag. Its ultimate form, characterized by a lengthy silver body draped over the chassis, concealed spoked wheels, gracefully arced wheel arches, a tapering rear fin, and twin circular air intakes positioned behind the cockpit, remains captivating even today. The exhaust pipes, arranged in clusters along the sides, impart a functional directness that is almost architectural in its precision. Every surface appears to have been purposefully sculpted to manage airflow, dissipate heat, and withstand pressure.
Initially, the record attempt was slated for a highway near Gyón, Hungary, where Mercedes had previously established a flying-start mile record in late 1934. However, adverse weather conditions compelled the team to relocate southward, first to Milan, and then further still when snow blanketed their intended route. Ultimately, a suitable stretch of road was discovered between Pescia and Altopascio, in the vicinity of Lucca. This section was notable for its level terrain, excellent grip, approximately eight-meter (26 feet) width, and a remarkable five-kilometer (three-mile) straightaway. On February 14, 1935, the team commenced trial runs, fine-tuning the radiator grille, wheel covers, and other aerodynamic elements. The following morning, Hans Stuck returned to the course, where official timekeepers employed electrically triggered photocells to meticulously record the runs. The decisive configuration involved largely sealing the front radiator opening, leaving only a small aperture for cooling. Across two averaged runs, Stuck achieved a flying-start mile record in International Class C at 320.267 km/h. During a segment of the return run, instruments recorded an astonishing 326.975 km/h (203 mph), solidifying the car's claim as the world's fastest road racing car.
Audi Tradition meticulously recreated the Auto Union Lucca by painstakingly studying archival photographs and historical documents, with the bodywork proving to be one of the most challenging aspects of the entire project. The cockpit canopy and the distinctive tapered tail, along with other model-specific components, were all meticulously handcrafted. In Audi's state-of-the-art wind tunnel, the reconstructed vehicle achieved an impressive drag coefficient of 0.43. For the reconstruction, a 16-cylinder engine sourced from the Auto Union Type C, boasting a 6.0-liter displacement and generating 520 PS, was chosen. Audi Tradition opted for this engine due to its visual resemblance to the 5.0-liter engine utilized in the original period car, while also ensuring its compatibility within the broader Silver Arrow collection. The newly recreated Auto Union Lucca also incorporates specific Avus-race modifications, including ventilation enhancements designed to effectively manage heat during forthcoming demonstration runs. This painstaking endeavor not only resurrects a magnificent piece of automotive history but also underscores the relentless pursuit of engineering excellence and the meticulous attention to detail that characterizes Audi's legacy.