//public Car Post(Car car) {
        //    if (null != car) {
        //        car.Id = 1;
        //        return car;
        //    }
        //    throw new HttpResponseException(new HttpResponseMessage() {
        //        StatusCode = HttpStatusCode.BadRequest,
        //        ReasonPhrase = "Car data must contain at least one value."
        //    });
        //}

        public Car Post(FormDataCollection carFormData) {
            var carFormKeyValues = carFormData.ReadAsNameValueCollection();
            var car = new Car() {
                Make = carFormKeyValues["Make"],
                Model = carFormKeyValues["Model"],
                Price = Convert.ToSingle(carFormKeyValues["Price"]),
                Year = Convert.ToInt32(carFormKeyValues["Year"])
            };
            return car;
        }
 public Car Put([FromUri]int id, Car car) {
     return car;
 }
		private void writeItem(Car car, StreamWriter writer) {
			writer.WriteLine("{0},{1},{2},{3},{4}", Escape(car.Id),
				Escape(car.Make), Escape(car.Model), Escape(car.Year), Escape(car.Price));
		}