FIG. 1 is a front left perspective view showing a snowmobile according to the design;
FIG. 2 is a right side elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a front elevation view thereof; and,
FIG. 6 is a rear elevation view thereof.
Throughout the Figures, broken lines showing structure are for illustrative purposes only and form no part of the claimed design. Portions of the snowmobile not shown in the Figures form no part of the claimed design.