You've beaten this drum before, and I don't understand what you're driving at (pun intended).
And you keep ignoring the facts. You keep implying they are both dangerous and since cars are required to be registered and insured, guns should be treated the same. It is a false comparison because the base claim about cars is false. Cars, trucks etc are not required to be registered or insured. The requirement is for driving them on public roads.
When I grew up in Ohio, my family routinely had winter vehicles and summer vehicles. Insurance was dropped when they were not used 6 months out of the year. Folks in my family continue to do that today. Insurance is not required on the vehicle. Only when used on the roads.
Cars and guns are different things; obviously the details of their respective registration/insurance regimes will differ. But, broadly states, guns and cars are both (i) very useful (ii) have the potential to be very deadly, and (iii) very easily stolen by those intending to use them irresponsibly. The rationale for registration and insurance exists for each, when each will be used for its intended purpose.
That "intended purpose" is just BS. Cars are registered for WHERE they are used, not how or by whom.