Automobile manufacturers reduce Stock, when the high cost of holding inventory, but when the customer can
tolerate the delay effect is best to set upstream in the supply chain more safety stock, to obtain habitat benefit. Automotive decline in sales issue, lead to increased inventory of vehicles, dealers will have problems in financing chain. Dealers in particular, 4S shop franchise is always in the weak position of absolute, have to complete sales task assigned by the manufacturer at the end of the month or the year, the manufacturers often use "end return" to promote the achievement of objectives dealers, to pressure on the dealers by overcapacity, lead cooperation of each other unhappy.