This Car Is Powered by Salt Water: 760HP, Top Speed 186 MPH, 621 Miles/Tank

No, it doesn't. This car is being presented for many years now, but no validation of any claim was ever made. At minimum the claim of "salt water" is wrong. Flow cell batteries do exist, but they are based on exchanging charged electrolyte. A great concept, except that the storage density is less than lithium batteries. Also, the CEO of the company has a very colorful background. More here (in German) https://correctiv.org/faktencheck/wirtschaft-und-umwelt/2019...

This article is interesting because not only are its claims implausible, they are also completely nonsensical on their own terms.

If the company really could make a salinity gradient engine that was efficient and practical enough to be used in an automobile, then why on earth bother to make and sell the car? Just make and sell the engine! The owners would quickly become among the richest people on earth. Why waste time actually making the car, which lots of people already know how to do. Just sell the engines or license the technology to the car makers.

Looks like the company has Swiss / British roots and not German. This link is interesting because of the pro/cons discussion at the bottom: https://en.wikipedia.org/wiki/NanoFlowcell

A cool concept, but considering the only people talking about it are the company themselves and a few pop-sci sites like this, I'm going to go with Jalopnik on this.

https://jalopnik.com/the-supercar-that-runs-using-saltwater-...