It just means they're not going to pay to float the cost of the car from the manufacturer. iirc the dealers "buy" the cars from the manufacturer, then resell them to the customers. In the interim, they must carry this floating debt while the unsold cars sit on the lot. This is often why you can cut great deals on cars they want to get out of their inventory: it's often better for them to take the principle hit instead of letting the car rack up more interest payments on the floorplan or take a sizable principle hit in a wholesale auction.