Car dealerships are predictable. Each month, they must meet certain sales quotas that the auto makers set for sales. Throughout the month, the pressure is mounting on car dealers to move units to meet their sales goals. The time to buy a new vehicle is never better than the end of the month, when the pressure is highest and the prices are lowest.

How do you take advantage of this rare weakness at the dealership? First, wait until the last weekend of the month, when they will be running their best sales. Secondly, make sure you know what you want to pay for the new vehicle on their lot buy checking the invoice price at Lastly, be prepared to walk away from the deal if they do not accept your offer based on the invoice price.

Using these three steps puts you in the driver’s seat in price negotiation, instead of overpaying at the dealership and paying your salesperson’s bonus.