Foreign automakers continue to plough money into factories in China, the world's largest car market, even as the biggest economic slowdown in a quarter of a century crimps sales growth. That's in spite of the economic slowdown further depressing the car market in January-March, when sales grew only 3.9 percent, compared to 9.2 percent a year ago and way below the 7 percent growth that the China Association of Automobile Manufacturers predicts for this year.