The ornamental design for a vehicleinteriorsupportsystem, as shown and described.
FIG. 1 is a partial perspective view of the interior of a vehicle, such as a bus, having a vehicle interior support system in accordance with a first embodiment of our new design;
FIG. 2 is an end view of the design of FIG. 1;
FIG. 3 is a plan view of the design of FIG. 1; and,
FIG. 4 is a partial perspective view of the interior of a vehicle, such as a bus, having a vehicle interior support system in accordance with a second embodiment of our new design.
Any parts shown in broken lines form no part of the claimed design.