The pizza delivery boat is a vehicle that only appears in the episode "Pizza Delivery."
It is an automatic transmission boatmobile with transmission gears that are written in Korean. The steering wheel is on the right side of the boat.
Role in episode
Mr. Krabs sends SpongeBob and Squidward to deliver a pizza to a customer. Before they leave on the delivery, the two check the tire pressure, antenna, bumper, and bumper sticker (which reads "I Brake for Sea Urchins").
The boat runs out of fuel, and Squidward kicks the front bumper. It instantly fills up again with gas and goes down the road.