Class mobil with merk, tahun produksi and objeknya

class Car {
  String Merk = '';
  String Model = '';
  int Age = 0;

  // Constructor
  Car(this.Merk, this.Model ,this.Age);

  // Car Constructor
  Car.guest() {
    Merk = 'BMW M3 GTR';
    Model = 'M3 GTR';
    Age = 2013;
  }

  // Method
  void showInfo() {
    print('Merk Mobil: $Merk seri $Model diproduksi pada Tahun: $Age');
  }
}

void main() {
  Car car1 = Car('Pagani','Zonda R',2012);
  car1.showInfo();

  var car2 = Car('Porsche','911 Spyder',2011);
  car2.showInfo();

  Car guest = Car.guest();
  guest.showInfo();
}