Then why do you say it if you don't know at all? Do you at least have a link that backs up your assertion?
See I am not an lawyer, but I don't believe this is possible. Tesla can only do this in 2 cases, if they are selling the car to an overseas customer, so in this case, they have the choice to accept a different currency other than the USD or if they explicitly has a permission from regulators to domestically sell their cars in a different currency, something which I believe is very difficult to obtain.
Again, this needs a lawyer to say if it's possible or not.