This type of loan used to be quite common but for a completely different reason. Prior to 2005, in many states the owner of the vehicle could be held liable for any damage caused by the vehicle (vicarious liability laws). With a lease, the credit company holds the title, thus for a period of several years, NY and NJ residents were forced into balloon/option loans instead of traditional leases.

It is really interesting to see balloon/option loans coming back, but for a different reason.

As far as I know, no bank does leases and only the captives do them. In this case, you owe wells fargo for the full amount of the loan, but Tesla and Musk are personally guaranteeing to buy the car back. A clever way to create a lease product backed by a company that won't do leases.