The ornamental design for a threewheeledvehicle, as shown and described.
FIG. 1 is a front isometric view of our new, original and ornamental design;
FIG. 2 is a left side view, the right side view being a mirror image thereof;
FIG. 3 is a front side view thereof;
FIG. 4 is a rear side view thereof;
FIG. 5 is a top side view thereof; and,
FIG. 6 is a bottom side view thereof.
The broken dash lines in the three wheeled vehicle represent the bounds of the claimed design while the broken dot-dash lines are directed to environment and are for illustrative purposes only. The broken dash lines and broken dot-dash lines form no part of the claimed design. Additionally, the unshown portion of the three wheeled vehicle forms no part of the claimed design.