The ornamental design for an automobiletire tread, as shown and described.
FIG. 1 is a front perspective view of an automobile tire tread showing our new design;
FIG. 2 is a front view thereof, the top and bottom views being identical thereto;
FIG. 3 is a right-side view thereof, the left-side view being a mirror image thereof;
FIG. 4 is an enlarged, fragmentary front view thereof, taken along lines IV-IV and in the direction of arrows in FIG. 2; and,
FIG. 5 is an enlarged, fragmentary perspective view thereof, wherein the gray shaded areas indicate characteristic features of the automobile tire tread that extend repetitively around the entire outer surface of the tire and do not represent color or contrast.
The broken lines represent environmental subject matter only and form no part of the claimed design.