The ornamental design for a steeringwheel, as shown and described.
FIG. 1 is a front elevational view of a steering wheel for a vehicle showing my new design;
FIG. 2 is a top and front perspective view thereof;
FIG. 3 is a left side elevational view thereof, the right side being a mirror image thereof;
FIG. 4 is a rear and bottom perspective view thereof; and,
FIG. 5 is a front and left side view thereof.
The portions of the vehicle shown throughout the drawing views in a de-emphasized and half-tone form within the broken lines and the broken lines representing the boundary and configuration of what is not being claimed as the design are all for environmental and illustrative purposes only and form no part of the claimed design.