https://www.cnet.com/roadshow/news/rivian-amazon-gm-investment-rumors/ > Both Rivian and Amazon declined to offer comment on the matter while GM didn't immediately respond to requests for comment. > Rivian's R1T and R1S concepts were both truly impressive when they made their world debut in LA last year. We also found the design and construction techniques that Rivian is using for its battery packs to be fairly ingenious and has left us wanting an even closer look at the company's work.