房車，也稱旅居車，“RV”，英文全稱Recreational Vehicle，也翻譯為Motorhome或Trailer，簡稱RV，可以隨意停靠在遠離城市的沙灘、湖岸、草地、山坡、森林中，同時又擁有城市的生活方式：自己做可口的飯菜、洗個熱騰騰的澡、睡柔軟舒服的床、看電視、聽音樂、放DVD等。

RV跟縮小版的房子一樣，大體可分為自行式與拖掛式兩種，自行式房車又可分為自行式A型、B型、C型，拖掛式房車可分為拖掛式A型、B型、C型、D型、移動別墅，房車一般都有臥室，裝了座廁、盥洗臺、浴缸的衛生間，客廳，開放式廚房。客廳里兩邊都有大窗，方便隨時隨地欣賞路上的風景，地上鋪著淺黃色的地毯，奶黃的軟包內壁再配以原木裝飾，確實有一種家的味道。“房子”里面還配備空調、液晶電視、VCD、冰箱、微波爐、煤氣爐、熱水器等電器。電器的啟動，完全依賴交流發電機提供電源，在有外接電源的情況下，就由外接電源取代。同時，車上還裝備了許多安全設施，包括LPG(液化石油氣)檢測器、CO報警器、煙霧報警器、緊急出口、滅火器、安全帶等，可謂麻雀雖小，五臟俱全。

RV, also known as RV, or Recreational Vehicle in full English, also translates as Motorhome or Trailer, or RV for short, which can be parked in the beach, lakeshore, grassland, hillside, and forest far away from the city at will. At the same time, it has the city's lifestyle: making delicious food, taking a hot bath, sleeping in a soft and comfortable bed, watching TV, listening to music, playing DVD, etc.

Like the reduced version of the house, RV can generally be divided into two types: self propelled and trailer type. Self propelled RV can also be divided into self propelled A, B, C, and trailer type RV can be divided into trailer type A, B, C, D, and mobile villas. Generally, RV has bedrooms, toilets equipped with toilets, washbenches, bathtubs, living rooms, and open kitchens. There are large windows on both sides of the living room, which is convenient to enjoy the scenery on the road at any time and anywhere. The ground is covered with light yellow carpets, and the interior wall of milk yellow soft bags is decorated with logs. It really has a homely taste. The house is also equipped with air conditioners, LCD TVs, VCD, refrigerators, microwave ovens, gas stoves, water heaters and other electrical appliances. The starting of electrical appliances completely depends on the power provided by the alternator. If there is an external power supply, it will be replaced by the external power supply. At the same time, the vehicle is also equipped with many safety facilities, including LPG (liquefied petroleum gas) detector, CO alarm, smoke alarm, emergency exit, fire extinguisher, seat belt, etc. It can be said that although a sparrow is small, it has all the internal organs.