A former dev has recommended that the GTA six map should be smaller and a lot more densely packed. Even so, as leaks have ongoing to trickle away from Rockstar, modders have recreated the GTA six map in GTA 5's motor which presents a sense of its large scale. https://gta-six-trailer-song19631.bleepblogs.com/36684508/grand-theft-auto-6-steam-options