If the ship is carrying cars as import or export cargo it will be a merchant ship - that is, a ship used for trading, tourism and so on, rather than for military purposes - and this merchant ship will be referred to as a cargo ship. If the cars are in containers, it will be called a container ship.
Other kinds of merchant vessel which carry cars are passenger ships such as ferries; these ships have special car decks so that motor vehicles can be driven on board by the passengers on embarkation and driven off again on disembarkation.
Some military vessels also carry motor vehicles, for military purposes.
said boat is called a Ferry, and they are fairly big, usually used for transportation between islands large enough to have roads
A ferry is the type of ship used to transport cars and people.
a ferry
Ferry
A ferry.
A ferry
Junks
A ferryboat is a type of boat that transports both cars and people.
Ferryboat is a compound word for a boat that transports cars and people.
A ferryboat is a compound word for a boat that carries cars and people.
ferry
It is a Ferryboat
ferryboat
Ferry
A ferry would carry people and cars across a short body of water
Ferryboat
The word is ferryboat.
A ferry.
a boat that transports people and cars is usually called a ferry most often used for crossing a river,or from a mainland to island to island where the cost of bridges outweighs the cost of ferries