public class Main {
    public static void main(String[] args) {

        Wrangler myWranglerCar = new Wrangler();
        myWranglerCar.drive( 100);
        System.out.println("Wrangler odometer displays " +myWranglerCar.odometer+ " miles");
        myWranglerCar.takeOffDoors();
        System.out.println(myWranglerCar.returnCarModel());

        ModelX myModelXCar = new ModelX();
        myModelXCar.drive( 90);
        System.out.println("ModelX odometer displays " +myModelXCar.odometer+ " miles");
        myModelXCar.switchAutopilotOn();
        System.out.println(myModelXCar.returnCarModel());

        Car myCar = new Car();
        myCar.drive(50);
        System.out.println(myCar.returnCarModel());
    }
}
/* Output:
Car drove 100 miles
Wrangler odometer displays 100 miles
Doors are taken off
Car model is Wrangler
Car drove 90 miles
ModelX odometer displays 90 miles
Autopilot is switched on
Car model is ModelX
Car drove 50 miles
Car model is unknown
*/