First, the power of attorney is not extended, because when it is issued, the term for which it is issued is indicated, and the procedure for extending it is not provided for by law. Secondly, the notary certifies the signature of the car owner, accordingly, if the owner does not sign the new power of attorney, then there is nothing to certify. Thus, it is impossible to certify a power of attorney without the signature of the owner of the car.