trains and vehicles

I think  Minecraft should have more vehicles, for example, and most importantly, trains. I think personally that Minecraft could add realistic, early and small mine trains and small trains in general, this could be a cargo train with lots of storage space, a passenger train for mobs and players, or maybe even a train that you can connect minecarts to. all of these trains would be powered by steam and will use coal to run, like the furnace minecart but you can ride it yourself and connect more carts/cars. 

another thing you could add bigger ships that you have to build with your own hands, aspecial block could be added to turn it into a floating and realistic boat. this could also be powered by steam or sails made out of wool and string.