The ornamental design for an automobiletire tread, as shown and described.
FIG. 1 is a front perspective view of an automobile tire tread showing my new design;
FIG. 2 is a front view thereof, the top and bottom views being identical thereto;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof; the right side view being identical thereto;
FIG. 5 is an enlarged, fragmentary front view thereof, taken along lines 5-5 and in the direction of arrows in FIG. 2; and,
FIG. 6 is a cross-sectional view of a part taken from the 6-6 line in FIG. 5, which shows only a cutting section.
In the drawings, the broken lines defining the sidewall, inner bead and the peripheral boundary between the claimed tire tread and the unclaimed sidewall depict environmental subject matter that forms no part of the claimed design.