Card vehicles cover ground machines and military equipment, and their appeal is largely speed: camouflage and markings resolved at the press save whole evenings at the airbrush. Compared with aircraft there are more flat panels and angular superstructures, but the running gear adds work of its own — wheels and tracks are made from series of thin rings and segments that have to be joined without interruption. Because the finish is printed, a card vehicle is also a quick way of seeing how a camouflage pattern sits on a shape before paint is committed to a moulding out of military vehicle kits. Bunkers, walls and gun positions printed to the same sizes are in card fortifications.