PARIS/DETROIT (Reuters) – Tesla Motors Inc (TSLA.O) Chief Executive Elon Musk is prepared to fire overseas executives, people with knowledge of the matter said, after weak Chinese sales of the company’s luxury electric cars cast doubt on his ambitious global expansion plans. Tesla sold about 120 cars in China last month, one of the sources told Reuters, well below the company’s aggressive targets. Musk has previously said he expected China sales could rival those in the United States as early as 2015. Two top China managers left the company in 2014, Tesla said last year.