The ornamental design for a vehicletaillamp, as shown and described.
FIG. 1 is a top front perspective view of a vehicle tail lamp, showing my new design;
FIG. 2 is a bottom front perspective view thereof;
FIG. 3 is a top rear perspective view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left side elevational view thereof;
FIG. 7 is a right side elevational view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The dashed broken lines in the figures depict portions of the vehicle tail lamp that form no part of the claimed design. The dot-dashed broken lines represent boundaries of the claimed vehicle tail lamp. The dot-dashed broken lines form no part of the claimed design.