1. If i sell, it does not transfer to the new owner. Edit: people disputed this - but i think this only happens if you also hand over the account. Either way, given this write up, it seems rather complex and imo, it shouldn't be if Tesla is trying to be genuinely honestly (https://www.findmyelectric.com/blog/does-full-self-driving-f...)
2. If i sell, I cannot keep it for my next car
3. The subscription option came out a month after we bought our car. Its about 10 years of FSD subscription payments
4. Saving the best for last - it doesn't work / exist
If i could get a refund I would. I cannot wait for the class action against Tesla for this, i'll be the first to signup.