You already answered your own question with the car analogy. Notwithstanding all the rest of it, guns are inherently dangerous. There’s no way to make them “safe,” like removing the points from lawn darts. Gun manufacturers would have a conga line of ambulance-chaser lawyers following them around 24/7 seeking a payday every time so much as scratched themselves with the rear sight while cocking their own pistol.

If you think American citizens like their guns, let me tell you this: The American government really, really, really likes their guns. They want to have all the guns and if they had their way you would have none. But the problem is, they buy all their guns from private manufacturers, just like us. If gun manufacturers were liable for what idiots did with their products (arguably including, but realistically probably not including the various police and governmental forces in the US) they’d all be bankrupt tomorrow. And then what? The cops and military would have to buy all their guns from some other country.

Arms production could theoretically be nationalized, but realistically in America it won’t be, either, because everyone in American politics is really against that sort of thing.