Wisconsin Statutes Banking and Finance (Ch. 214 to 225) § 218.0147. Purchase or lease of motor vehicle by minor

(1) No minor may purchase or lease any motor vehicle unless the minor, at the time of purchase or lease, submits to the seller or lessor a statement verified before a person authorized to administer oaths and made and signed by either parent of the purchaser or lessee, if the signing parent has custody of the minor or, if neither parent has custody, then by the person having custody, setting forth that the purchaser or lessee has consent to purchase or lease the vehicle. The signature on the statement shall not impute any liability for the purchase price of the motor vehicle or for any payments under the consumer lease to the consenting person. The statement shall not adversely affect any other arrangement for the assumption of liability for the purchase price or any lease payments which the consenting person may make.

(2) If a motor vehicle is purchased by a minor, the signed statement described in sub. (1) shall accompany the application for a certificate of title and shall be filed by the department of transportation with the application. Failure to obtain the consent or to forward it, together with the application for a certificate of title in the event of the purchase of a motor vehicle, shall not void the contract of sale or consumer lease of a motor vehicle in the hands of an innocent holder, without notice, for value and in the ordinary course of business.

(3) Any person who sells or leases a motor vehicle to a minor with knowledge of that fact without procuring the statement described in sub. (1) may be fined not more than $200 or imprisoned for not more than 6 months or both.