老牌德系豪华车，加速失守中国市场

Group 1 - The core viewpoint is that German luxury car manufacturers, particularly Mercedes-Benz, are facing significant challenges in the Chinese market, with declining sales figures compared to competitors like BMW and Porsche [1][2][3] - In the third quarter, BMW experienced a global sales increase of 8.8%, while Mercedes-Benz and Porsche saw declines, with Mercedes-Benz's sales in China dropping by 27% to 125,000 units [1] - The decline in sales for Mercedes-Benz is particularly severe, with a reported retail volume of 27,000 units in July, marking a more than 40% month-on-month decrease, the lowest monthly sales in five years [1] Group 2 - Porsche has also been struggling in the Chinese market, with a 15% drop in deliveries in 2023 and a projected 28% decline in 2024, leading to a total of 32,200 units sold in the first three quarters of 2023, down 26% year-on-year [2] - The competitive landscape in the luxury car segment is intensifying, with domestic brands like Wuling and Li Auto gaining market share due to their advantages in smart and electric vehicle technology [3] - Mercedes-Benz is shifting its strategy for electric vehicles, moving away from the "EQ" sub-brand to integrate electric models into its mainstream product lineup, with plans to launch a new electric model based on the MMA platform [3][4]