Best way to serialize object properties (to save as csv)

Question

I am creating 100s of class instances inside a loop based on some conditions. I try to add all the instances to a List<string> to save it as a csv file. Is there a better option to save instances properties to a csv file.

    public class Car
    {
        public int ID { get; set; }
        public double Price { get; set; }
        public double Weight { get; set; }

// A Method like this ? is it right way ??
        public string PropertiesCSV(Car model )
        {
            return $"{model.ID}, {model.Price},{model.Weight},";
        }
    }

    public class Inventory
    {
        // I want to add all the instance properties (ID, Price, Weight) to this list

        public static List<string> CSV { get; set; } = new List<string>();

        // This method to save the List<string> to a csv file

        public void SaveCSV()
        {

        }
    }