The ornamental design for a drivingaid, as shown and described.
FIG. 1 is a perspective view of a driving aid according to the present invention;
FIG. 2 is a front view of a driving aid according to the present invention;
FIG. 3 is a left side view of a driving aid according to the present invention;
FIG. 4 is a right side view of a driving aid according to the present invention;
FIG. 5 is a top view of a driving aid according to the present invention;
FIG. 6 is a bottom view of a driving aid according to the present invention; and,
FIG. 7 is a rear view of a driving aid according to the present invention.
In the drawings, the broken lines in FIGS. 1 and 2 showing an X, three rectangles, and an arrow represent driving aid insignia and form no part of the claimed design.