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In addition to the privacy and security issues, they also have a substandard infotainment still running Android 4.

Android 4? I had a 2017 Kia Ceed where I hacked the head unit, and I'm sure that was at least Android 6?

Older cars may have newer Android versions. People say that the Ioniq 5 is still running Android 4.4, but I havn't verified myself.