Every day thousands of Americans default on their car loans or lease payments as a result, their new or almost new cars get repossessed by the financial institutions and auctioned off in a hurry. The cost of storing the cars outweighs the banks' ability to try to make the lost money back.
Consequently, lucky people who have access to direct sources where the cars are being sold would find themselves overwhelmed by dirt-cheap offers that look unbelievable to the average car buyer. This is real and is being taken advantage of by many car dealers.