The correct statement demonstrating Newton's third law in the context of bumper cars is:
If two bumper cars collide with a certain force, then one car will transfer its force to the other car and they will move away from each other in opposite directions.
This reflects the principle that for every action, there is an equal and opposite reaction, meaning that when one bumper car exerts a force on another during a collision, both will experience forces that result in them moving away from each other.