Automotive companies have vast R&D budgets and they've been researching (and improving) EV's for
decades. Many auto manufacturers have been involved in Formula E racing, keeping up the tradition of developing technology on the race track and then moving it into production for the consumer market.
Now that there's been a spike in consumer interest in EV's these companies would like to recoup that R&D, not to mention they want to be recognized as leaders in the automotive world. I wouldn't want to start a business to take on Mercedes, BMW, Renault, Audi, Volkswagen, Porsche, Lexus - no way. Those guys will crush you.
The SUV and truck market is a different story, however and I think it's smart for Rivian to focus on that segment. They still have stiff competition from the likes of Ford, GM, Toyota and Honda but Toyota and Honda haven't been as active in EV's as the other world-class automotive manufacturers so you stand a better chance competing with them. GM and Ford have a history of failures in responding to rapidly shifting market demands (think of their disasters in the 70's and even into the 80's with producing cars achieving good fuel economy and lower emissions). Now is the time to compete against Ford and GM. Of all the upstart EV makers I think Rivian is best positioned to really stand out and make a name for themselves. As long as they stay away from cars.
