text: class Car:
      def __init__(self, model, brand, color):
          self.model = model
          self.brand = brand
          self.color = color
          self.status = 'Rest'
          self.motor = Motor(cylinders=4)
  
      def accelerate(self, start='slow'):
          if start == 'fast':
              self.motor.inject_fuel(10)
          else:
              self.motor.inject_fuel(3)
          self.status = 'Motion'
  
  class Motor:
      def __init__(self, cylinders, fuel='Gas'):
          self.cylinders = cylinders
          self.fuel = fuel
          self.temperature = 0
  
      def inject_fuel(self, quantity):
          pass