Possibly because you paid $200k on the car, leaving $200k less in the bank.
But from an accounting perspective, the $200k is a sunk cost. Looking forward, if one is valuing the car for the tech, extreme range range, and pretty good (if not Bughatti-busting) performance, one might just go for a lower cost, more accessible, and relatively "pretty good" tires. One of the benefits of EV ownership is a general lack of periodic maintenance, which for most super cars can be extreme. Having to get new tires every year is kind of like requiring periodic maintenance, no?