N.C. Gen. Stat. § 20-303: Installment sales to be evidenced by written instrument; statement to be delivered to buyer.

(a) Every retail installment sale shall be evidenced by one or more instruments in writing, which shall contain all the agreements of the parties and shall be signed by the buyer.

(b) For every retail installment sale, prior to or about the time of the delivery of the motor vehicle, the seller shall deliver to the buyer a written statement describing clearly the motor vehicle sold to the buyer, the cash sale price thereof, the cash paid down by the buyer, the amount credited the buyer for any trade-in and a description of the motor vehicle traded, the amount of the finance charge, the amount of any other charge specifying its purpose, the net balance due from the buyer, the terms of the payment of such net balance and a summary of any insurance protection to be effected. The written statement shall be signed by the buyer. (1955, c. 1243, s. 19; 2007-513, s. 1.)