Создание массива с объектами дочерних и родительского классов

class Car {
    public:
    std::string brand;
    std::string model;
    int mileage;
    int consumption;
    int *coordinates;
    bool is_in_use;
    int days_in_use = 0;
    int price;
    Car() {};
    Car(std::string brandi, std::string modeli, int mileagei, int con, int lat, int lon, bool use, int days, int pricei) {
        brand = brandi;
        model=modeli;
        mileage = mileagei;
        consumption = con;
        coordinates[0]=lat;
        coordinates[1]=lon;
        is_in_use = use;
        days_in_use = days;
        price = pricei;
    }
    void avr_cos() {std::cout << "average: " << consumption/mileage << std::endl; }
};
class Heavy: public Car {
    public:
    int mass;
    void cmass() {std::cout<< "mass: " << mass << std::endl; }
    Heavy(std::string brandi, std::string modeli, int mileagei, int con, int lat, int lon, bool use, int days, int pricei, int mas) : Car(brandi, modeli, mileagei, con, lat, lon,use, days, pricei) {
        brand = brandi;
        model = modeli;
        mileage = mileagei;
        consumption = con;
        coordinates[0]=lat;
        coordinates[1]=lon;
        is_in_use = use;
        days_in_use = days;
        price = pricei;
        mass = mas;
    }
};
class Bus: public Car {
    public:
    int peoples_per_day;
    Bus(std::string brandi, std::string modeli, int mileagei, int con, int lat, int lon, bool use, int days, int pricei, int ppl) : Car(brandi, modeli, mileagei, con, lat, lon,use, days, pricei)  {
        brand = brandi;
        model=modeli;
        mileage = mileagei;
        consumption = con;
        coordinates[0]=lat;
        coordinates[1]=lon;
        is_in_use = use;
        days_in_use = days;
        price = pricei;
        peoples_per_day = ppl;
    }
};
class Light: public Car {
    public:
    Light(std::string brandi, std::string modeli, int mileagei, int con, int lat, int lon, bool use, int days, int pricei) : Car(brandi, modeli, mileagei, con, lat, lon,use, days, pricei)  {
        brand = brandi;
        model=modeli;
        mileage = mileagei;
        consumption = con;
        coordinates[0]=lat;
        coordinates[1]=lon;
        is_in_use = use;
        days_in_use = days;
        price = pricei;
    }
};

const int MAX_CARS=100;
Car* cars[MAX_CARS];
cars[0]=new Car(.....);
cars[1]=new Heavy(.....);
cars[2]=new Bus(.....);