The ornamental design for a frontend of a vehicle, as shown and described.
FIG. 1 is a right, front perspective view of a front end of a vehicle showing my new design;
FIG. 2 is a left, front perspective view thereof;
FIG. 3 is a left, rear perspective view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view; and,
FIG. 7 is a top plan view thereof.
The portions of the vehicle shown in de-emphasized and half-tone portions outside the broken lines and the broken lines representing the boundary and configuration of what is claimed as the design are for environmental and illustrative purposes only and form no part of the claimed design.