Inheritance

class Vehicle {
  public:
    string brand = "Ford";
    void honk() {
      cout << "Tuut, tuut!" << endl;
    }
};
class Car : public Vehicle {
  public:
    string model = "Mustang";
};
Car myCar;
myCar.honk();  // Output "Tuut, tuut!"
cout << myCar.brand + " " + myCar.model << endl;  // Output "Ford Mustang"