Um. In order to have enough lead shielding, we need to convert all cars into tanks. We also need to make these tanks slow enough so that even in an accident, the nuclear waste will no leak. Of course, to do this, we must remove the weapons from the tanks. Fortunately, we can safely dispose of these weapons in places like Boston and Atlanta because those places have BSL-4 labs (and by 'safely', I am referring to the safety of everyone who is not in a place like Boston or Atlanta because f*** them).
Added 1/15/2023
I have a great idea. Instead of using SpaceX rockets to launch nuclear waste into the sun, I am going to start a rocket company called SpaceSex which will use nuclear powered Blue Origin (after all, we are SpaceSex) rockets to launch nuclear waste into the sun. We will perform operations in South Africa. After all, South Africa is a very dysfunctional country that produces characters like Elon Musk (who heroically lost 200 billion; oh and dumb people who worshipped him also lost a butt ton of money because they are f***ed up) and Die Antwoord, so South Africa has no choice but to approve of very dangerous nuclear powered rockets. Actually, we will just do a lot of the operations in South Africa, but we will actually launch the rockets from Somalia which will approve of nuclear rockets since Somalia is Somalia. Our plan is simple. We will get the competitors of satellite companies to pay us to release caltrops in space to shred all the existing satellites. And this will also promote world peace because these caltrops will also be designed to shred nuclear ICBMs as well. As a consequence, we will design our satellites to be resistant to our own caltrops so ours will work and others will not work. We will also design our nuclear rockets sending nuclear waste into space to be resistant to our own caltrops. Oh. And since sending nuclear waste to the sun is too expensive, we will only put the nuclear waste in orbit around Earth. What could possibly go wrong?
If you think my idea of SpaceSex is messed up, just think about it. Regardless of how messed up my idea of SpaceSex is, that will be a far better idea than having BSL-4 labs that do not post cryptographic timestamps of all data on blockchains.
Yes, but, think of the places you would need shielding if you enjoyed nuclear SpaceSex and wanted to stay alive!
As for cars, if they are tanks without guns, think of how safe they would be. In fact, add some interior padding, and you could even make them into bumper cars.
Didn't Musk send a car into space? With a few modifications, you could have SpaceSex in the back seat.