A futures car refers to the subject matter traded in a futures exchange. Compared with physical delivery, futures trading only needs performance bond and handling fee, does not need to actually buy or store physical objects, and does not need to bear the related expenses of physical delivery, so the cost is lower and the price is cheaper.
In addition, the risk of futures trading is higher than physical delivery, so the price of the subject matter traded in the futures market usually has a certain discount, which is one of the reasons why futures cars are cheaper.