Roll-on/roll-off (RORO or ro-ro) ships are vessels designed to carry wheeled cargo, such as cars, trucks, semi-trailer trucks, trailers, and railroad cars, that are driven on and off the ship on their own wheels or using a platform vehicle, such as a self-propelled modular transport.  -wikipedia

Container ships are cargo ships that carry all of their load in truck-size intermodal container, in a technique called containerization. They are a common means of commercial intermodal freight transport and now carry most seagoing non-bulk cargo.   -wikipedia

A Bulk carrier is merchant ship specially designed to transport unpackaged bulk cargo, such as grains, coal, ore, and cement in its cargo holds.

  -wikipedia

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Bulk carrier used to load heavy vehicle, mini bus, any kind of vehicle on the its deck.