Took me 3 tries to parse the title.
"Rivian Joins Forces" - is that name of an organization? - "with Tesla"... nope, that doesn't make sense.
"Rivan Joins forces" (somebody to do something), syntax error got "with".
"Rivan joins forces with Tesla" - yay!
And you know that person who wrote this knows about lowercase, because of "with" and "for"...