I haven’t actually played GTA V in single player mode. At least not for long. The last GTA I played all the way through was GTA IV. I didn’t get into it like I once did. Then GTA Online came along.
I tried to play the game. But modders and griefers made me go to play solo. Much like I play WoW and ESO. Except I don’t have to hide from other players in those games.
So have only really done solo content. Mostly treasure hunting, auto shop and other random events that a solo player can do.
I have however, collected an insane amount of vehicles. To date, 166.
Yes I know I have the Kosatka in the list twice, because the Dingy can be summoned and driven anywhere on the water.