5:31 PM PT -- While Elon's net worth might've taken a hit, he can hopefully rest assured that his new Cybertruck is already proving to be a hit with one of the biggest names in music.

We got Lil Uzi Vert Saturday, and asked what he made of Tesla's futuristic new ride -- this, of course, as Uzi was getting into his own behemoth of a vehicle that was very Cybertruck-esque.

Check it out -- LUV tells us he's already planning to cop the Cybertruck, despite its not-so-indestructible windows. There's a catch though ... he says he won't pay a dime for it, and has a pretty good reason as to why.

Don't feel so bad, EM -- Uzi loves it, and that's gotta mean something for the market.

Elon Musk takes risks -- and his latest cost him dearly.

Tesla's share price plunged by 6% since the close of the market Friday ... and that takes $768 million out of Musk's pocket.

There's little doubt ... the reversal of fortune is tied to Thursday night's unveiling of the Cybertruck at SpaceX headquarters in Hawthorne, CA.  As we reported, Elon -- who billed his latest creation as indestructible -- wowed the crowd at first by taking a sledgehammer to the truck's door with no ensuing damage. But, then ... the chief designer took a metal ball and tossed it at one of the truck's windows and it shattered. He tried again with even less force with the same result.

It's unclear if the failed demonstration is the only reason for the stock plunge. The design of the truck has met with mixed reviews. As you can see and hear ... Eva Longoria's not a fan.

As for Elon ... fear not. Even with the hit his estimated worth is $23.6 billion. What's interesting ... there are 40 people in the world richer than that.

Originally Published -- 7:03 AM PT