After decades of riding the sales gravy train, legacy premium brands face a harsh new reality in China. BMW, Mercedes-Benz, and Porsche had a rough 2024, and the start of this year has been even more brutal. The posh trio saw double-digit declines in the first quarter, with Zuffenhausen taking the hardest hit by far. Porsche plummeted by 28 percent to 56,887 cars in 2024 versus the year before. In Q1 2025, deliveries decreased by a worrying 42 percent versus the January-March 2024 interval. During the first three months of the year, the company sold only 9,471 cars in China….