hitched wagons

The wagons should be able to be coupled to form long chains of wagons like "trains", they could be propelled by a wagon with an oven, and carry two or three wagons behind with chests or players, it could even be added the mechanics of derailing on tracks of very long redstone due to speed, or to be able to re-feed the furnace from another wagon so that the "train" would never stop the wagons could be coupled, perhaps with chains, or with hooks, or with a new type of chain that It has not yet been implemented.