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From Pathfinder Battlecry!, which isn't enabled.

Cavern Crawler

VEHICLE 20
Price 210,000 gp
Space 50 feet long, 50 feet wide, 30 feet high
Crew 1 pilot, 3 crew
Passengers 30
Piloting Check Arcana (DC 42) or Driving Lore (DC 40)

AC 43; Fort +34
Hardness 20, HP 300 (BT 150); Immunities precision

Speed 30 feet, burrow 30 feet (clockwork, magical)
Collision 14d10 (DC 40)
Space

100 feet long, 30 feet wide, 30 feet high

Tunnel

The cavern crawler can burrow through solid stone at a Speed of 15 feet. The pilot can choose to leave a tunnel.

Swallow (manipulate)

Two crew members each perform a 3-action activity on their turn to open the caravan crawler's mouth and eat a Huge or smaller creature adjacent to the vehicle, who must attempt a DC 40 Fortitude save. A creature can choose to fail. On a failure, the creature is swallowed by the cavern crawler, moved into the passenger bay, and knocked Prone. This action fails if the passenger bay is full.

Description This massive undead vehicle is created by crafting a piloting and cargo compartment within the husk of a massive cave worm and then infusing the remains with void energy. This compartment has breathable air as well as sealable weapon ports. Designed specifically to burrow under and then behind enemy positions, cavern crawlers can attack enemies on their flank or bring supplies and reinforcements to troops deep behind enemy lines.
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