Based on my experience (from working there), car manufacturers often do not implement stuff themselves, they outsource. E.g. the HTML5-based infotainmemt system

Based on my experience (from working there), car manufacturers often do not implement stuff themselves, they outsource. E.g. the HTML5-based infotainmemt system in the Porsche 918 was not created by Porsche (though they market it as if it was), but by S1nn. From a software engineer perspective, if you work at a car manufacturer, you usually do not write software yourself, you're hired to write specs for external companies and verify that the results are conformant. Which honestly is boring. The car manufacturers should react to the influx of new competitors (like Apple, Google) by becoming software companies themselves, but management is too stupid to see that. S1nn is a perfect example: Apple or Google would have bought the company right away, so should have Porsche. Guess who bought them instead? Harman.