
Startups go out of business all the time. It's part of the inherent risk of doing business and doing so without the financial backing of a large company. And that's especially true within the vehicle manufacturing space as, I don't know if you know this, but making a vehicle is actually pretty hard.
There's loads you need to solve for, including part manufacturing, engine or drivetrain sourcing, engineering issues, legal issues, as well as finding the right customers for your machine. That all gets especially hard when you price said vehicle where only the richest 1% can afford it as, though there are more 1%ers than ever before, they still don't make up that much of the general population.