In an automobile engineering, a grille covers an opening in the body of a vehicle to allow air to enter. Most vehicle feature, a grille at the front of the vehicle is to protect the radiator and engine. Merriam-Webster describes grille as a grating forming a barrier or screen; especially: an ornamental one at the front end of an automobile. The grille on the car or truck is its most distinctive signature, and it’s one of the first things people notice about a ride. A well- designed grille can make it easy for those with even a passing interest in cars to recognize the type of vehicle you drive. The objective of our project is to design the vertical and horizontal billet grille by using CREO PARAMETRIC, study and analyze the structural ability by varying the material. The materials using for analyse the grille are ABS PLASTIC,ABS / PC ALLOY. The flow from outside to the inside of a car bonnet for vertical and horizontal type of billet grille also studied and compared using UG-NX NASTRAN. Along with this, tool design also had done using CREO PARAMETRIC.