Each item in Minecraft has a unique ID assigned to it, known as an item ID, this can be used in commands to spawn the item into the game. The item ID for minecart with chest in Minecraft is shown below:
Items from earlier versions of Minecraft were assigned a numerical ID - a unique number to represent it.
The numerical ID for Minecart with Chest is:
The Minecart with Chest item can be spawned in Minecraft with the below command. Cheats must be enabled before this will work.
Minecarts with chests are, as the name would suggest, minecarts with chests. They cannot take a passenger. When right clicked, they open up the chest interface to store items.