There are currently about 4,000 EV on the road in Hong Kong, and most of them are Teslas, Musk said. The company plans to bring its Model X to China during the second half of 2016 and aims to begin building some Tesla vehicles in China before 2020.  During a CNN interview on Monday, Musk said that the company must begin building cars locally to become eligible for the government incentives, which will ultimately help bring down the cost of it selling its cars in China.