The ornamental design for an automobile lower frontbumper, as shown and described.
FIG. 1 is a front perspective view of an automobile lower front bumper showing our new design on an automobile;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is an opposite side elevational view thereof;
FIG. 5 is an enlarged front elevational view thereof;
FIG. 6 is an enlarged perspective view thereof;
FIG. 7 is another enlarged front elevational view thereof;
FIG. 8 is an enlarged side elevational view thereof;
FIG. 9 is an enlarged top plan view thereof; and,
FIG. 10 is an enlarged rear elevational view thereof.
It will he understood that the broken lines shown in the drawings illustrate portions of the automobile lower front bumper that form no part of claimed design.