在两个相关类中使用继承的最佳方式是什么

class Vehicle:
    def __init__(self, make, model, year):
        self.make = make
        self.model = model
        self.year = year

    def start_engine(self):
        print(f"The {self.make} {self.model} engine is starting.")

    def stop_engine(self):
        print(f"The {self.make} {self.model} engine is stopping.")

class Car(Vehicle):
    def __init__(self, make, model, year, num_doors):
        super().__init__(make, model, year)
        self.num_doors = num_doors

    def open_trunk(self):
        print(f"The trunk of the {self.make} {self.model} is opening.")

# 使用示例
my_car = Car("Toyota", "Corolla", 2020, 4)
my_car.start_engine()
my_car.open_trunk()
my_car.stop_engine()

class ElectricCar(Car):
    def start_engine(self):
        super().start_engine()  # 调用父类的start_engine方法
        print("The electric motor is starting.")

my_electric_car = ElectricCar("Tesla", "Model 3", 2021, 4)
my_electric_car.start_engine()