Right off the bat, when you fire up GTA ONLINE, the character customization options have been increased and you can basically onw tweak a lot of minor details to make your character unique.
First Person Cars
The biggest addition of the next gen version of GTA V has to be the amazing First Person mode. Rockstar definitely put a lot of effort into this, which can be clearly seen in the image below. This is the interior of a Police cruiser. The high resolution of the next gen makes even the tiny details like the cracked glass pop out.
Up next are a few screenshots from GTA ONLINE, here in the first one you can see the mountains in the distance with ease. The second one gives you a look at the buildings (not too far though) and you get to see the foliage of the tree leaves.
Next up is another screenshot from GTA ONLINE, this time its during the night. It gives you a view of the night sky and the starts.
Finally, here is a picture of the new car customization options. The car is the image has been fully modified and the neon underglow has been added.