The ornamental design for a cartire, as shown and described.
FIG. 1 is a front perspective view of a car tire, showing our new design, it being understood that the tread pattern is repeated throughout the circumference of the tire;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is an enlarged front perspective view of FIG. 1; and,
FIG. 6 is an enlarged front elevation view of the car tire treads as indicated in FIG. 2.
The portions depicted in broken lines of uneven length define the unclaimed boundary of the claimed design. The portions in broken lines of even length depict portions of the car tire that form no part of the claimed design.