The grill is an opening at the front of a car that lets air enter into the radiator to cool the engine. It does not only enhance the appearance of the vehicle but adds to its functionality as well. The grill screens what is beneath the vehicle's hood and boosts airflow to that area with the help of a propeller located right at the back of the grill. This setup disperses the air. Hence, the process of cooling the engine is carried out. In addition, the grill covers the front end of the car to protect the radiator, front intercooler, and other important engine parts from road debris.

The growing trend in car customization and modification has given way to aftermarket manufacturers creating different designs and styles for grills that fit any car make or model. Grills come in various materials, colors, and designs to suit the individual preferences of car owners. To ensure durability amid various driving environments, most grills are made of strong carbon steel and are powder coated for enhanced protection. The parts also come with a U-shaped solid rubber gasket around it to primarily guard the car's paint finish after mounting the grill and to give it a fresh appearance. The grill often includes a metal or plastic insert, which is also known as stock grill insert, body color insert, or custom billet. Different car manufacturers offer different grill designs for their models and some grills carry their respective brand's emblem. Various popular designs out there are the billet and mesh grills, which can be seen from custom cars to sport utility vehicles and trucks.

Since the grill is attached at the front end of a vehicle, it is frequently subjected to harsh driving conditions. Also, it is the first among the auto parts to get damaged during collisions. A fitting solution is the installation of a grill guard over it. A grill guard is a tube of steel or aluminum shield that protects the grill and give the vehicle a tough and fierce look.