The ornamental design for an automobile, as shown and described.
FIG. 1 is a front perspective view of an automobile showing my design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof, a right side elevational view not being shown as it is a mirror image of the left side elevational view;
FIG. 6 is top plan view thereof; and,
FIG. 7 is a front perspective view thereof with the doors open.