Chinese electric-vehicle startup Nio, Inc. (NYSE:NIO) rallied strongly in premarket trading on Monday, and its U.S.-listed domestic peers also traded sharply higher. Shanghai, China-based Nio announced Sunday that strategic investors, includingHefei Jianheng New Energy Automobile Investment Fund Partnership, Anhui Provincial Emerging Industry Investment Co., Ltd. and CS Capital Co., Ltd., have agreed to invest an aggregate of 3.3 billion yuan ($470.64 million) in cash in its subsidiary Nio China. Nio has concurrently agreed to invest 10 billion yuan (about $1.43 billion) in cash to subscribe t…