Samsung has partnered with Tesla to supply its cars with processors for their "auto-pilot" functions in the past, although the silicon in question has come from 14 nanometer (nm) process nodes. However, a Korean news outlet now asserts that these automotive SoCs are to evolve all the way to 5nm soon. They might control in-car entertainment as well as self-driving abilities in the future.
https://www.notebookcheck.net/The-Samsung-Exynos-platform-for-Tesla-self-driving-cars-is-to-upgrade-to-5nm-new-report.516984.0.html