There needs to be a last panel where its the final version. Like when the car is turned on:
Waterfall: It becomes a clown car and more people than it could handle is inside causing it to explode. Or is left as half finished because they ran out of money.
Agile: Only the wheels go forward, rest of car stays.
AI: The car goes straight up, not forward.
Anger: Developer becomes angry at the car. Kicks it until it becomes a bike and rides off.
There needs to be a last panel where its the final version. Like when the car is turned on: