Rear portion for an automobile

FIG. 1 is a left, front perspective view of a rear portion for an automobile showing our new design;

FIG. 2 is a left, rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a top view thereof.

The deemphasized/reduced tone portions of the rear portion for an automobile depict portions that form no part of the claimed design.