Excluding model/class properties in express

adminController.postAddVehicle.js

exports.postAddVehicle = ({ body }, res, next) => {
    const car = new Car(body)
    console.log(car)
    return car
        .save()
        .then(() => {
            res.redirect('/');
        })
        .catch(err => console.log(err))
}

model.js

module.exports = class Car {
    constructor(data) {
        this.data = data;
    }

    save() {
        const { car_photo_url, car_price, ...body } = this.data;
        return fetch(endpoint, { method: "post", body: JSON.stringify(body) });
    }
}

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
}