Backcar (3.5e Equipment)
From D&D Wiki
Backcar: The backcar is a special attachment for the Tank Scarab, which is normally used as a backpack or ammo storage. The backcar is a self-contained cockpit suitable for a single medium person. The backcar comes in basic and fancy models. The basic possesses eye slits for vision, and provides concealment (50%). The pilot cannot attack with any projectiles larger than a bead, such as that of a Fireball spell.
The fancy version has no eye slots and is air tight. It magically connects to the Tank Scarab's vision, granting 360 field of vision as his ride. This is a magical effect, and the subject is blinded in an antimagic field.
Entering and departing either backcar is a move action. A lock must be bought to seal the door of a backcar and prevent intrusion.