That's very different to how dealers work in the UK. Having worked at ground level and UK HQ of a German manufacturer (blue and white logo) all new vehicles unless had a customer name attached was 'open' stock, so if another dealer had a customer for a vehicle then they could take the vehicle and assign it to their dealer number. Most new vehicles had a 180 day free stocking plan, after it went fully paid and the money came out of the dealer account, this then went onto a stocking plan and the dealer paid a small fee for this financial service, also at this point the stock now belonged to the dealer and was not 'open' so another dealer would have to make a request to have that vehicle from the dealer and only then could they have it, most dealers allowed that to happen, what goes around comes around. Once a vehicle goes fully consigned from the manufacturer, dealers want shot of the vehicle, it's tying up funds. Dealers cannot charge another dealer more than cost price, unless they have prepped the vehicle for the road and can only add that charge. There are few 'favourites' within any network that get priority from the manufacturer.