The ornamental design for a motorvehicleexteriorbody, as shown and described.
FIG. 1 is a front and left side perspective view of a motor vehicle exterior body showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof, the right side view being a mirror image thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a rear elevational view thereof; and,
FIG. 6 is a rear and right side perspective view thereof.
The wheels shown on the motor vehicle exterior body throughout the drawing views in a de-emphasized and faded out form with broken lines representing and outlining their boundary are for environmental and illustrative purposes and form no part of the claimed design.