FRANKFURT/DETROIT (Reuters) – A group of deep-pocketed China-based internet entrepreneurs and financial investors, including Tencent and Hillhouse Capital, is backing an effort to create NextEV, a new rival to U.S. electric car maker Tesla Motors Inc (TSLA.O). Hillhouse is also an investor in Uber, the U.S. ride sharing service.The backers have hired ex-Ford Motor Co (F.N) executive Martin Leach to build a global automaker, a NextEV spokeswoman said on Monday.