The ornamental design for an automobile, as shown and described.
FIG. 1 is a front perspective view of an automobile showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is left side view thereof;
FIG. 6 is a right side view thereof; and,
FIG. 7 is a top view thereof.
The rhombus-shaped design on the front grill and the word Borgward on the back door of the automobile are registered trademarks of Borgward Trademark Holdings GmbH and form no part of the claimed design. The text on the back door of the automobile forms no part of the claimed design.