Car sales problem

The registration and temporary license is not controlling.  The sales contract is what controls and it appears that is complete. Assuming the dealer has already signed the contract, the dealer is not permitted to simply require you to "void" the sale.  That being said, if the dealer has, in fact, actually already sold the vehicle to another person, the question is how the dealer can make the situation "right."   You should ask to see a copy of the other sales contract to ensure that it pre-dates your agreement.  If the dealer has, in fact, previously sold the vehicle to another buyer, the dealer would no longer have the authority to transfer the vehicle to you. Assuming the vehicle has already been sold to another buyer, I would encourage you to work with the dealer to see if they can provide you with another similar vehicle, together with a significant concession on the price to account for the lost time, frustration, expense, etc.  Most dealers will try to do the right thing. If the dealer does not work with you to make the situation "right," you can contact the Automotive Industry Board (which regulates dealers in the State of Colorado), the Better Business Bureau, or an attorney to escalate the matter. Hope this information is helpful.