A previous dev has suggested that the GTA 6 map really should be smaller and even more densely packed. Having said that, as leaks have continued to trickle out of Rockstar, modders have recreated the GTA 6 map in GTA 5's engine which gives a sense of its substantial https://dantevtqpm.livebloggs.com/42718969/an-unbiased-view-of-grand-theft-auto-6