FIG. 1 is a right side perspective view of an automotive quarter panel showing our new design; FIG. 2 is a right side elevation view thereof; FIG. 3 is a right side perspective view of an automotive quarter panel showing a second embodiment of our new; and, FIG. 4 is a right side elevation view of FIG. 3. The broken lines are for illustrative purposes only and form no part of the claimed design.