The ornamental design for a exterior of vehicle grill, as shown and described.
FIG. 1 is a top view of a vehicle grill in accordance with an embodiment of the present invention;
FIG. 2 is a front elevational view of the vehicle grill of FIG. 1; and,
FIG. 3 is a side view of the vehicle grill of FIG. 1.
The illustrated and claimed vehicle grill is illustratively shown attached to a pick up truck with the broken away portion of the truck being illustrated in broken lines. The broken lines for the truck, including for the hood, the front fender, and the headlights, are only intended to illustrate the environment of the design. Additionally, the side views of the grill are mirror images of one another. The back, top, and bottom sides of the grill form no part of the claimed design. Further, the honeycomb portion of the grill is illustrated in broken lines and is not part of the claimed design.