A vehicle may include a door pivotally mounted to a vehicle body at a lower end portion of the door, to open or close an opening formed at a portion of one surface of the vehicle, while being configured to form a bottom surface connected to a floor of the vehicle in a state of completely pivoting toward an outside of the vehicle in accordance with an opening operation of the door, forming a terrace space connected to an internal compartment of the vehicle, and a seat slidably mounted in the internal compartment of the vehicle, to provide a seating compartment for passengers, while being configured to be slidable outwards toward the opening of the vehicle, providing a seating compartment in the terrace space when the terrace space is used in accordance with the opening operation of the door.