EV giant Tesla Inc (NASDAQ:TSLA) said on Thursday that it will open its supercharger network in North America to rival EV makers Rivian Automotive (NASDAQ:RIVN), General Motors (NYSE:GM), Volvo Car (OTCPK: VLVCY) and Polestar Automotive (NASDAQ:PSNY)starting spring this year. The announcement comes on the heels of the company opening its network to Dearborn-based legacy automaker Ford Motor Co. What Happened: Tesla is looking to open its North American supercharging network to more rival automakers through the end of 2025. While initially charging on the network will require an adapter provide…