The ornamental design for a rearspoiler for an automobile, as shown and described.
FIG. 1 is a front elevational view of a rear spoiler for an automobile in accordance with our new design;
FIG. 2 is a top plan view of the rear spoiler in accordance with our new design of FIG. 1;
FIG. 3 is a bottom plan view of the rear spoiler in accordance with our new design of FIGS. 1 to 2;
FIG. 4 is a right side elevational view of the rear spoiler in accordance with our new design of FIGS. 1 to 3;
FIG. 5 is a left side elevational view of the rear spoiler in accordance with our new design of FIGS. 1 to 4;
FIG. 6 is a right side perspective view of the rear spoiler in accordance with our new design of FIGS. 1 to 5;
FIG. 7 is a left side perspective view of the rear spoiler in accordance with our new design of FIGS. 1 to 6; and,
FIG. 8 is a rear elevational view of the rear spoiler in accordance with our new design of FIGS. 1 to 7.
The rear spoiler is configured to be mounted to an automobile and have a rear brake lamp mounted in the elongated opening. The hidden surfaces, visible in FIG. 3 and FIG. 8, of the rear spoiler form no part of the claimed design since the hidden surfaces are not visible when the rear spoiler is mounted to the automobile.