"While most Porsches can import quite easily from Europe to the USA, the 959 had complications abound, making it impossible for US citizens to get their hands on one of these supercars. One of the citizens was Gates, who ordered a 959 from Porsche, only to have it impounded at customs. The reasoning provided to justify the impounding was that the 959 had not yet cleared crash-testing requirements and did not meet EPA standards. Gates’ German supercar sat idly by for over a decade."
https://blog.dupontregistry.com/celebrity-cars/bill-gates-am...
Such a car cannot be driven on the road within The Netherlands without it being validated as safe (plus some other inspections).
For US, same seems to apply. Per https://www.dmv.org/car-registration.php it mentions: "Pass a vehicle safety inspection.". So again you need to deal with paperwork and read what those safety regulations are.
FWIW, dmv.org is not an official government site.
They don't do safety inspections in the US?
Doesn't the vehicle need to have brakes, a means to change direction, emission checks and so on?
Don't most have a bond alternative to insurance?
You could build and use a service with no regards for your personal privacy - it's your service after all, and it's your business if your data gets leaked. But could you offer such a service?