Amphibious Vehicle

The Amphibious Vehicle is an object that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. It's a motorized form of transportation that can work underwater and on land.

Case of the Pirate Princess
Echo the Dolphin commandeered an Amphibious Vehicle from Meropis Tourism in order to search for the missing Princess Undina, who was being held ransom by pirates. After finding out that the pirate kidnappers are sailing around an island known as "the Knives", Echo and the Chaotix use the vehicle to travel across the sea floor to get there. Charmy begins to worry about glass windows breaking and drowning. Although Espio tells him that they'll probably get crushed by the pressure first. Echo tells them the car is perfectly safe, as the car has it's own pressurization field and there are Air Charms in the glove box. Not much later, Echo accidentally hits Razor the Shark with the vehicle and gets out with Vector to investigate. After some commotion, everyone quickly gets back into the car when a pirate submarine appears. Echo tries to start the car, but is too late and the sub abducts the vehicle with all those inside it.