"A car equipped with a roof box driving on a highway, with the increased air resistance visibly affecting the vehicle’s aerodynamics. The scene shows the car in motion with the roof box clearly visible, set against a Dutch landscape with wind turbines and green fields in the background. The focus is on how the roof box impacts fuel consumption, emphasizing the increase in air resistance and the potential for higher emissions. The image should convey the concept of reduced fuel efficiency and increased driving costs due to the roof box."