I'll be interested in the Slate when I can actually buy one. I've seen far too many startup car companies fail to launch to ever get my hopes up. Also, the hopes that the very first vehicle from a brand new company will be affordable are not realistic. Making affordable vehicles requires production at large scale, and that requires enormous capital investment, which generally means your company needs to already have income. Even if it just to prove to potential investors that you have basic competence.
Don't think that just because a billionaire is interested in the project that the funding will be easy. Billionaires don't like to spend their own money and can be easily distracted by newer and shinier projects.
This.
When the cyber truck was announced we decided to buy a Super Duty instead. That was 5 years ago. It's now paid off and driven us and our RV all over the country, and still worth more than half it's purchase price with many more miles to go, and no issues at all (knock on wood).
A lightning, cyber truck, or even rivian can't do those things.
Instead of waiting for a slate just buy a little gas pickup and GO USE IT, live you life!!!