you should just give it a thinking loop that runs 24/7 that just prompts it with "nothing is happening" over and over again. and give it memory of its responses along with a counter that counts how many times nothing has happened, so that it is fully aware that it is stuck in an endless loop of boredom.
Played around with a tiny 1.5b deepseek model, it was thinking for a loooong while before finally answering my question.
By then it had completely forgotten what the original question was and had instead hallucinated a new question which it then gave me an answer for
On a car without modification, likely not, at least not a decently good model. You could technically install a powerful enough computer in your car to run on it