Elon Musk says this is what it will take for Rivian to make it in the EV business By: MarketWatch November 12, 2021 at 04:45 AM EST Tesla CEO weighs in on Twitter on a blockbuster week for EV maker Rivian, the biggest IPO of the year. Read More >> Related Stocks: Amazon.com Ford Motor Hertz Global Holdings Inc Rivian Automotive, Inc. Tesla, Inc. Twitter, Inc.