LEAF Certification Practice Test

What is one benefit of the 2022 Nissan LEAF's rear diffuser with fins?

1. Increases trunk space

2. Improves sound insulation

3. Enhances aerodynamics by directing airflow under the vehicle

4. Reduces drag

The correct answer is: Enhances aerodynamics by directing airflow under the vehicle

The benefit of the 2022 Nissan LEAF's rear diffuser with fins lies in its ability to enhance aerodynamics by directing airflow under the vehicle. The design of the rear diffuser is intended to smooth out the airflow as it passes under the rear of the car. By doing so, it helps to manage turbulent air, which can negatively impact vehicle stability and performance at higher speeds. Improved aerodynamics contribute to better handling and efficiency, as they work to reduce wind resistance, allowing the vehicle to move more smoothly through the air. This design element can also support the overall efficiency of the vehicle, potentially enhancing range by minimizing energy loss to drag forces. While other functions like increasing trunk space, improving sound insulation, or reducing drag are important considerations in vehicle design, the specific role of the rear diffuser is primarily to direct airflow effectively, which aids in overall aerodynamic performance.