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