A door sedan is a type of car that has four doors and a sedate, or elegant appearance. It typically refers to a full-sized car with a formal design and ample interior space for passengers. The term can also refer to a vehicle with a traditional sedan body style, which features a smooth, streamlined exterior and a spacious trunk area. Overall, the phrase "door sedan" is used to describe a practical and stylish vehicle that offers comfort and convenience for families or groups of passengers.