Tesla will break ground next month on a new factory in Shanghai — solidifying Elon Musk’s commitment to double production of electric vehicles in China , according to a report. The new factory in China’s financial hub will enable Tesla to produce up to 2 million units annually, putting the electric vehicle maker on a par with legacy car manufacturers who have also set up operations in the Asian country, Reuters reports. The Post has contacted Tesla seeking comment. The plant is slated to be built near Tesla’s current factory, known as Gigafactory 3, in nearby Lingang. Last year, Toyota…