Why didn’t King Solomon produce autonomous cars?

(Re-sent with some corrections):
Hello, Your Honor, and have a good week!
In the fall of 2017, a conference was held in Jerusalem for thousands of seminary girls to warn against the danger of academia. Rabbis and rabbis of Israel spoke there, including the great gaon Rabbi Yitzchak Zilberstein , shlita, a member of the Council of Torah Scholars (son-in-law of the Rabbi Elyashiv and brother-in-law of the Rabbi Chaim Kanievsky). Here is a quote from his words:
“In the seventh chapter of Tractate Gittin, there are two pages in the Gemara full of cures. The Maharsha says, if a person understands what is written, there will be no illness that he cannot cure. I was at the Western Wall, there was an engineer there and he was talking about the weight of the stones, how did they know how to raise it to that height without cranes?
It is written in a verse in Ecclesiastes, “I made for myself singers and singers, chests and chests,” which are ornamental chariots. The question arises, is this what King Solomon is needed for? Any charioteer knows how to do it. Our Rabbi, the living one, argues, Every chest was like a ship. Where is it today? He humbled them because he was afraid of car accidents. He knew how to make cars, he knew how to find a lever, and everything from the Torah “. Lawyer.
From Rabbi Zilberstein’s words, I understand that King Solomon, in his immense wisdom, knew all the wisdom, and necessarily also knew how to produce everything that is produced today, such as cars. The only reason he did not discover this wisdom and enable cars to be mass-produced was because he understood the destructive consequences of modern transportation, and wanted to prevent road accidents.
The obvious question is: Why didn’t Shlomo discover the secret of autonomous cars??? In doing so, he would have allowed his generation and future generations a comfortable and pleasant ride, which is also safe and secure. In doing so, he would have saved tens of thousands and millions from fatal car accidents throughout history.
I would be very happy if you could enlighten me as to why our King Solomon did not reach this solution.