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Weissach (German pronunciation: [ˈvaɪsax]) is a municipality in the district of Böblingen in Baden-Württemberg in Germany.

Erich Hartmann (April 19, 1922, in Weissach – September 20, 1993, in Weil im Schönbuch) was a Luftwaffe pilot in World War 2. With 352 confirmed kills, he was the most successful fighter pilot in the history of air combat.

Groundbreaking for the research and development (R&D) center took place on 16 October 1961. The center, known as “Entwicklungszentrum Weissach” or “Development Center Weissach” opened on 1 October 1971. Porsche relocated its entire R&D department from nearby Zuffenhausen, and the design department followed in 1972. Eventually Porsche Motorsports racing department and they construct concept cars there now as well.^[3]

By the mid-1980s, a measuring center for environmental technology and a test building for engines and power units were built, among other new facilities. In May 1986, Porsche opened what was then the most modern wind tunnel in the world.^[4]

Porsche named the Weissach axle after the town.

The Porsche 918 Spyder supercar was developed in Weissach and to its honor Porsche offered an optional US$84,000 “Weissach package” that featured reduced weight and improved aerodynamics.^[5]

As of 2025 Porsche offers the Weissach Package on the 2025 Porsche 911 GT3 RS and the Porsche Taycan Turbo GT.

• 1948–1972: Herrmann Kempf
• 1973–1997: Wolfgang Lucas
• 1997–2005: Roland Portmann
• 2005–2006: Reinhard Riesch
• 2006–2014: Ursula Kreutel
• 2014–2022: Daniel Töpfer
• Since 2022: Jens Millow