Re: Impossible, unless...
I heard the thing about him getting more shares, and perhaps that's what he wants most... and maybe the $1 Trillion is just a side-show~? I always thought it odd that he hadn't sold the company to someone with deep pockets before this... they've presumably got some IP related to EV manufacture, and the charging network could be sold separately, or he might keep hold of that? But if he's got more shares then perhaps (1). he's got more control and might be better able to get the sale approved? and (2). I guess he'd gain more if/when the company (car manufacturer + maybe charge network) are sold?
But... I still feel he should've done this a few years ago when the company was still in it's accent! Right now, Musk's own brand is kind of toxic, the EV side of things has far far more competition, and significantly, where Tesla used to benefit from carbon-credits from non-EV manufacturers, this is decreasing; AFAIK, Tesla used to make a crazy amount of money from legacy manufacturers who had little or no EV products of their own.
^ that latter part might also be why Musk is so annoyed with Trump since it's not _just_ that Tesla EVs don't get a subsidy, but also that if there's no carbon-credits (or whatever the US equivalent was), then he won't be getting "free" money from non-EV car sales.