public IHttpActionResult GetById(int id)
        {
            var car = _carRepository.GetById(id);

            if (car != null)
            {
                return(Content(HttpStatusCode.OK, CarDto.Create(car)));
            }
            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetAll()
        {
            var cars = _carRepository.GetAll();

            if (cars.Any())
            {
                return(Content(HttpStatusCode.OK, CarDto.Create(cars)));
            }
            return(StatusCode(HttpStatusCode.NoContent));
        }