The ornamental design for a decorativepanel for an automobile, as shown and described.
FIG. 1 is a front elevational view of a decorative panel for an automobile in accordance with our new design;
FIG. 2 is a top plan view of the decorative panel in accordance with our new design of FIG. 1;
FIG. 3 is a right side elevational view of the decorative panel in accordance with our new design of FIGS. 1 and 2;
FIG. 4 is a left side elevational view of the decorative panel in accordance with our new design of FIGS. 1 to 3;
FIG. 5 is a front side perspective view of the decorative panel in accordance with our new design of FIGS. 1 to 4; and,
FIG. 6 is a front elevational view of the decorative panel in accordance with our new design of FIGS. 1 to 5 illustrating a state when the decorative panel is installed in an automobile.
The bottom view and the rear view of the decorative panel form no part of the claimed design.
The broken line showing in FIG. 6 is for purpose of illustrating environmental structure and forms no part of the claimed design.