The ornamental design for the Christmas car swag, as shown and described.
FIG. 1 is a front elevational view of the Christmas car swag showing my new
design thereof;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side elevational view thereof, the left side being a
mirror image;
FIG. 4 is a top plan view thereof, the bottom being a mirror image and the
electrical cord shown in broken lines for illustrative purposes only and
forms no part of the claimed design; and,
FIG. 5 is a perspective view of the Christmas car swag showing a use
thereof, the broken line showing of a portion of a vehicle is for
illustrative purposes only and forms no part of the claimed design.