It is true that Volkswagen produces its own Currywurst (curry sausage) since 1973, currently in their Service Factory unit. The VW Currywurst sold better than ever before. 8.552 million units were sold in canteens and supermarkets in 2024. This means that the Group sold more sausages than cars under the VW core brand: the 8.5 million sausages were offset by around 5.2 million cars and vans with the VW logo in 2024.
So, travelers stopping at Wolfsburg (train between Berlin and Hanover) and / or visiting VW Autostadt can get a taste.
Believe it or not: the Currywurst has an own part number: 199 398 500 A. I do not know if people can order it at a US-based VW car dealer.
Source of information: article in German language.