Excluding model/class properties in express

adminController.postAddVehicle.js

exports.postAddVehicle = (req, res, next) => {
    const model_year = req.body.model_year;
    const make = req.body.make;
    const model = req.body.model;
    const color = req.body.color;
    const miles = req.body.miles;
    const transmission = req.body.transmission;
    const layout = req.body.layout;
    const engine_config = req.body.engine_config;
    const car_photo_url = null;
    const car_price = null;
    const car = new Car(
        null, model_year, make, model, 
        color, miles, transmission, layout, engine_config
        )
        console.log(car)
/*     car
        .save()
        .then(() => {
            res.redirect('/');
        })
        .catch(err => console.log(err)) */
}

model.js

module.exports = class Car {
    constructor( 
        id, model_year, make, model, miles,
        color, transmission, layout, engine_config, car_photo_url, car_price ) {
            this.id = id;
            this.model_year = model_year;
            this.make = make;
            this.model = model;
            this.miles = miles;
            this.color = color;
            this.transmission = transmission;
            this.layout = layout;
            this.engine_config = engine_config;
            this.car_photo_url = car_photo_url;
            this.car_price = car_price
        }

postBody.js

Car {
  id: null,
  model_year: '2016',
  make: 'Chevrolet',
  model: 'Corvette',
  miles: 'violet',
  color: '56000',
  transmission: 'automatic',
  layout: 'MR',
  engine_config: 'V8',
  car_photo_url: undefined,
  car_price: undefined
}