The ornamental design for an automobile tire, as shown and described.
FIG. 1 is a front perspective view of an automobile tire showing our new design, it being understood that the tread design is repeated uniformly throughout the circumference of the tire and the opposite side is the same as that shown;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof; and,
FIG. 6 is an enlarged fragmentary front elevational view thereof.