My headcanon is that Elon downloaded Blender one night to try and learn it, made a low-poly car and then some sycophants said "hey great job" and he decided it was now cool and Tesla should manufacture it.
The talk about the hinges starts at 18:45[1] in the video but I recommend you watch the whole video from the start.<p>[1] <a href="https://youtu.be/khPMITqp91I?si=ub_RIs9U9rqbKT7z&t=1125" rel="nofollow">https://youtu.be/khPMITqp91I?si=ub_RIs9U9rqbKT7z&t=1125</a>