There are only 3 (very large) factories manufacturing computer chips needed in cars in the world. As a previous poster said, Covid dramatically effected production, but also one factory suffered a large fire and burned to the ground. Following this, due to the difficulty in purchasing the chips that were available, Apple made one manufacturer an offer they couldn’t refuse and purchased one of the factories for their own use alone. That currently leaves only one factory for chips needed for all computerised devices, including TVs, cameras, computers, cars etc. Car manufacturers are frequently working short hours as a consequence. The situation won’t get better any time soon.