Tesla (TSLA) CEO Elon Musk says the real test for newly public electric vehicle startup Rivian (RIVN) will be high volume production and breakeven cashflow. He went on to say there have been hundreds of automotive startups, but "Tesla is [the] only American carmaker to reach volume production & positive cash flow in past 100 years." Rivian went public this Wednesday reaching an $86 billion valuation right out of the gate as the company raised $12 billion in its IPO. I hope they’re able to achieve high production & breakeven cash flow. That is the true test.