The ornamental design for a motorvehicleexterior, as shown and described.
FIG. 1 is a left, front perspective view of a motor vehicle exterior incorporating our novel design (to which the right, front perspective view is a mirror image);
FIG. 2 is a front view of the motor vehicle exterior thereof;
FIG. 3 is a right side view of the motor vehicle exterior thereof (to which the left side view is a mirror image);
FIG. 4 is a right, rear perspective view of the surface configuration of motor vehicle exterior thereof;
FIG. 5 is a rear view of the motor vehicle exterior thereof; and,
FIG. 6 is a top view of the motor vehicle exterior thereof.
The broken lines shown in the drawings illustrate portions of the motor vehicle exterior that forms no part of claimed design.