Sleeping overnight in a vehicle (car, train, bus, etc.); car camping or spending the night in a vehicle — used for travel or emergency sheltering.
週末は車中泊で温泉巡りをする予定だ。
This weekend I'm planning to go on a hot-spring tour and sleep in the car.
災害で避難所が混雑していたため、家族は車中泊を選んだ。
Because the shelters were crowded after the disaster, the family chose to sleep in their car.
夏の夜は涼しい場所で車中泊する人が多い。
Many people do car-camping at cool spots on summer nights.