A seller in a consumer credit sale of a motor vehicle may secure the debt arising from the sale by contracting for a security interest in any other motor vehicle used for the purpose of transportation of persons or property, as well as the motor vehicle which is the subject of the sale. Provided, further, that the amount of the debt secured by property other than the motor vehicle which is the subject of the sale shall be clearly set forth and when the total debt is reduced to an amount equal to or less than the amount secured by the motor vehicle which is the subject of the sale, a release of the security agreement as to such "other vehicle" will be furnished to the debtor upon request but such partial release shall not impair the security interest on the motor vehicle which was the subject of the sale. The total amount secured by any transaction authorized hereunder cannot exceed the amount of the sale price of the motor vehicle, and further, the seller cannot advance money or other things of value to be included in such consumer transaction.
Laws 1974, c. 255, § 1.