One consistent naming for every car

Changed

• Every car now uses one catalogue naming: brand, model, the year its model generation started and the body style (e.g. BMW / 5 series / 2017 / Estate, Mercedes-Benz / C-Class). Before, many cars used local names such as BMW / 5er or Mercedes / C-Klasse.
• /api/getall, /api/brands, /api/search and every other list return only the current names.
• Names never contain a slash, so every path has exactly one segment per name: where the catalogue writes one, the name has a hyphen (e.g. Chevrolet / C-K, Skoda / 100-110).

Improved

• Requests with a name used before 5 October 2026 still work and answer with the car under its current name, so existing integrations keep running.
• Every name now stands for exactly one car.