This shield serves several purposes:
* Protection: It protects the engine and other components from road debris, dirt, and water.
* Aerodynamics: It can help to improve the car's aerodynamics by smoothing out the airflow under the vehicle.
* Noise Reduction: It can help to reduce noise from the engine and exhaust system.
It's important to note that the specific name for the shield may vary depending on the manufacturer and model of the vehicle. However, "engine splash shield" and "underbody shield" are the most common terms.