GTA Online features a wide variety of vehicles, some of which come with unique abilities. The Toreador and the Stromberg are two unique cars that have submersible capabilities.
Makes about as much sense as anything else Rockstar has done. : r/gtaonline
Which cars can go underwater in GTA Online?
How the Toreador in GTA Online can be used to fight griefers
Vehicles // GTA Online Guides - Rockstar Games
Steam Community :: Guide :: All Info on GTA Online Daily's & Random Events
How to Stop a Car Theft in GTA V: 11 Steps (with Pictures)
Exploits and Unlocks - GTA 5 Guide - IGN
Submersible Vehicle: List of All Vehicles in GTA 5 & GTA Online
How much does the submarine cost in GTA 5? - Quora
Top 10 fastest cars in GTA 5's online mode (November 2023)
Are there any GTA Online cars that can drive underwater?
Very sad to find out the snorkel doesn't actually work :( : r/gtaonline
GTA 5 Update 1.45 Brings Loads of Improvements This December 13
GTA Online: Thruster, Deluxo and Stromberg special vehicle races now available - RockstarINTEL
Submersible Vehicle: List of All Vehicles in GTA 5 & GTA Online