If they specifically told you that the car was "New" and this was used as a selling point, especially if it was a crux of the sale, but it is not new, then the dealership has violated at least one law under the UDAAP standards, as set forth by Dodd-Frank. If the paperwork lists the car as "New", then the dealership has a legal obligation to treat the car in every way as a new car, including warranty terms, etc.. I'd start by going in and speaking to someone in management at the dealership and let them know the problem, and give them a chance to remedy it. If they can't, or won't, then I'd do as others have mentioned and speak with the corporate office and/or your state's AG office. Also, if it was me, I'd make sure that the person I spoke to at the dealership know that I would be mentioning Dodd-Frank and UDAAP laws if I had to take it above their heads. HUGE fines for violations of those laws.