Not saying that's the only way to calculate it, so feel free to come up with a more aggressive version. Just pointing out that when you buy something for a car it's not only useful for a year, so you are unlikely to win an argument claiming 60% of $6000 after a year.Ouch, the amortization really kills it then. Sounds like it's probably not worth the hassle unless I still own the car like 10 years from now and Tesla somehow never delivers the features.
There are people that paid $5000 for FSD 6 years ago that still have literally nothing for it, so at least you have it better than many!