Managed to get GTA IV looking about as close to GTA V as is

In GTA Online, gamers will be able to get Day of the Dead style masks

Trevor Philips, GTA Wiki

How to Make GTA 5 More Like GTA IV - GTA 5 Mods

Meet the GTA movie that never was with Eminem as the protagonist and Top Gun's Tony Scott as director - Meristation

GTA IV is absolutely gorgeous : r/GTA

Why does it seem like GTA IV was more realistic than GTA V? - Quora

Is GTA IV more detailed than GTA V? - Quora

GTA V to GTA IV mod for PC is now available as an alpha version

15 Years Later: Here's Why There Will Never Be Another Game Like GTA IV Ever Again - autoevolution