The ornamental design for a foodholder for use in vehicles, as shown and described.
FIG. 1 is a perspective view of a food holder showing my design taken from above and from the left and front, with the environment in which the food holder is used being shown in dotted outline;
FIG. 2 is a perspective view of the food holder of FIG. 1, shown alone;
FIG. 3 is a perspective view of the food holder taken from below and from the right and rear;
FIG. 4 is a left end view thereof, a right hand end view being a mirror image thereof;