The ornamental design for a steeringwheel, as shown and described.
FIG. 1 is a perspective view showing a steering wheel embodying our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a left side view thereof; and,
FIG. 7 is a right side view thereof.
The broken lines appearing in FIGS. 1-7 define the bounds of the claimed design and/or disclose environment related to the claimed design, and therefore form no part of the claimed design.