N.M. Code R. § 12.2.4.10
Discounts:
B. It is an unfair or deceptive trade practice to advertise a discount price or price savings for a new motor vehicle unless the discount or savings claim is made in reference to a reference price that is objectively verifiable using data not solely subject to the dealer’s control, such as the manufacturer’s suggested retail price or the invoice price, and:
(1) the claim is not deceptive;
(2) the dollar amount of the reference price meets any applicable requirement such as Section 15 [now 12.2.4.15 NMAC]; and
(3) the resulting price meets the requirements of these regulations.
D. It is an unfair or deceptive trade practice for a dealer to use a reference price as the basis for a discount price or price savings claim unless the dealer clearly and conspicuously discloses:
(1) the source of the reference price, such as manufacturer’s suggested retail price or invoice price; and
(2) the amount of the reference price.
E. It is an unfair or deceptive trade practice for a dealer to use a reference price greater than the manufacturer’s suggested retail price as a basis for a discount or savings claim unless the dealer clearly and conspicuously discloses that:
(1) the reference price is greater than the manufacturer’s suggested retail price; and
(2) the amount by which the reference price exceeds the manufacturer’s suggested retail price.
[5-1-98; Recompiled 10/15/01]