Refrigerated cars, also known as reefer trucks, are specially designed vehicles that transport perishable goods at controlled temperatures. They are equipped with insulation and refrigeration units to maintain a cool environment, ensuring that items like fruits, vegetables, meat, and dairy products remain fresh during transit. These vehicles are essential for the food supply chain, allowing businesses to deliver products over long distances without spoilage. Refrigerated cars come in various sizes, from small vans to large trucks, and are commonly used by grocery stores, restaurants, and food distributors to meet consumer demand for fresh food.