Elon Musk’s visit to China has reportedly reaped immediate rewards with a deal for Tesla to use mapping data provided by web search company Baidu, a major step in introducing driver assistance technology in the world’s largest car market.Musk made an unannounced visit to China over the weekend. The billionaire posted a picture of his meeting with the Chinese premier, Li Qiang, on X, the social network he took over in 2022.Baidu, which dominates web search in China, will provide mapping and navigation functi ...