Map Dimensions and Key Areas
Rob Nelson, Rockstar's head of development, told YouTuber TGG that the full map is twice GTA 5 and three times Red Dead Redemption 2. Vice City itself matches twice Los Santos, while the city plus suburbs reaches eleven times the scale of Los Santos and its surroundings. Six named locations have been shown so far: Vice City, Port Gellhorn, Leonida Keys, Grassrivers, Mount Kalaga National Park, and Ambrosia.
Story Duration and Gameplay Systems

Nelson told the New York Times that his February playthrough of the main story plus optional goals with narrative impact took around 80 hours. Additional systems include a relationship mechanic, more realistic driving and car-jacking, and an updated Wanted system. The scale suggests further time for players who pursue side activities.
Announcement Context
The size and length figures were shared as part of Rockstar's Netflix presentation, which followed a week of leaks. Eurogamer noted the showcase helped the studio regain control of the narrative while it faces separate union-related criticism in the UK.