You'd be buying a lot of shares of a bad company. We need a regulatory block and some push back from the Rivian people. They don't need the dangerous strings that would come with GM money.
GM is another idiot organization that does everything with the primary aim of enriching its rent seeker owners, it even has an outrageous dividend. Its primary product is rent seeking, its tangible products are only incidental byproducts. Don't kid yourself its not a public entity paying for a micro fraction of grandma's mutual fund derived pension- no that is only the outer Ponzi scheme cover. Its about rents for parasites just like the Kaiser HMO which tax evades by claiming to be non profit but if if you look at its books closely there will be some for parasite private vendors that are getting for example something like 180 million a year to wax floors when the real contract should be for 180 thousand a year and that type of thing will be repeated all over the place.
Instead of giving its rent seeking parasites 25 billion recently it could have given each of the 15000 people its laying off about 170K severance, but no it laid them off so it could give that money to the useless rent seekers. But that is what it has been doing all along on way or another. Even GE's neutron Jack understood that every other stake holder comes before the free loader owners, Jobs definitely understood it, I think Warren Buffet gets it. Tim Cook is clueless and GM is off the scale with depravity on this with stupid comments like "a car is an inefficient use of capital" you see the only efficient effective use of capital for the idiots that run GM is fattening rent seekers with ill gotten gain. Their meetings are all about profit, profit, profit when profit is irrelevant, its just an overhead. The idea that honest capex or development costs and profit could ever be conflated is beyond insane- and a function messing with tax policy- not every 'savings' can be construed as profit unless business is just theft. A real firm in every transaction provides fair value but a something-for-nothing free loader firm, one that should just be replaced by a GAI for the people that make it up is all about extraction, everything it does is just an avenue to overcharge to get more than fair value to create margin for disconnected entitled parasites.