[jasode]

Not sure why you're comparing a lease residual to a Tesla buyback.

The lease residual is a price for the buyer to buy the car outright.

The Tesla resale guarantee is a price for the buyer to sell the car.

I wouldn't expect those % figures to be the same. I would expect the buy-to-own price to be higher than the sell-back price. Same concept as trading in an old car to the dealer for one price while the same dealer turns around and sells that used car to another buyer for a higher price.

Btw, when I turned in my car after a 36-month lease, the leasing company immediately offered to ignore the lease residual specified in the contract in an effort to entice me to buy the car. They immediately lowered the price because the leasing company didn't want the car back!