Machining parts to that precision would exponentially increase the cost of the individual parts. This is something that will never ever ever happen and I’d be willing to bet my entire fortune on it. No Cybertruck will ever be mass produced with all it’s components within 10 microns of tolerance. Elon might roll one off the line like that to prove that it can be done, but nobody other than his billionaire buddies would be able to afford one.