Challenge Task 3 of 3 Great! One last thing. In Python, attributes defined on the class, but not an instance, are

class RaceCar:

    def __init__(self, color, fuel_remaining, laps=0, **kwargs):
        self.color = color
        self.fuel_remaining = fuel_remaining
        self.laps = laps

        for key, value in kwargs.items():
            setattr(self, key, value)


    def run_lap(self, length):
        self.fuel_remaining = self.fuel_remaining - length*0.125
        self.laps += 1

Here is my solution, ask about any parts you don't understand

So in a class we are building a model of what we want an object to look like, so we don't necessarily want to pass in some values to it as it will be different for each object.

When we create an instance all we need to do is tell it what parameters to take and then we have already coded the blueprint, so it is made.

Does that answer your question and make sense?

So with a class we define what we want in the object we create, let's use a rectangle.

def __init__(self, length_one, length_two, color):

    self.length_one = length_one
    self.length_two = length_two
    self.color = color

In this fake init function we have created the plans for any rectangle we could possibly make. So one set of sides will be of length_one, and the other set of sides will be of length_two. Now we can set this on every rectangle we make so they can all be different. Then we can also set the color of each one with the color attribute.