Answer: The change will be considered a functional design improvement since it will enhance the use of the vehicle.
Step-by-step explanation:
An improvement in the functional design of an object will help that object work better such that its role efficiency will be enhanced.
The creation of a paint that will change based on temperature such that the temperature absorption ability of the car is made more efficient can definitely be considered an improvement in the car's functional design because the car will become more efficient by using less gasoline in extreme weather as well as becoming less of a hazard to drive due to the glare reduction.