When you write your class, you need to follow three steps.
I call these steps the Big Three.
If a class has fields that needs to have a constructor getters and setters, these are the big three,
it's not an official name, but you need to follow these steps when you write your class.
Right now, your car classes for fields, so it needs one constructor for getters and for setters,
one at a time, we're going to apply these steps.