I was playing with Alexander's SNT and finally  realized what button to press to make the car boost work. Anyway, I got in a plane and held the button down and noticed that you can just keep going and going and going. Look behind you, and Los Santos is no longer in sight. I kept going straight for at least 4 mins and then finally decided to shoot straight up. Look at these images I took http://imgur.com/a/hV8Ob#0

 

This map is huge... You could definitely fit Liberty City in here (Would be awesome if this was possible to fly back and forth.) Try it out for yourselves! 

 

 

 

 

 

WTF is that? 

It's hard to see since the pictures aren't really all that great. But basically TC is saying to hop into a plane and enable boosting. You can bypass the playspace barrier into what seems like a very, very large open area that is unused.

the hell wow so u can now keep going until ur in space nice one R*

So yeah, you could probably fit Liberty and North Yankton into the same space, if a modelling tool is made for the game. 

Still, a lot of empty space doesn't automatically equal a lot of use-able space.

I don't remember what game it is, but I know that an army game had also a unlimited map. It was a special thing they used. 

I don't remember what game it is, but I know that an army game had also a unlimited map. It was a special thing they used. 

The arma series? There are mods for maps that are several hundred kilometers long

The arma series? There are mods for maps that are several hundred kilometers long

​No, not the arma, but they have it also in that sort of way. I believe Joint Operations or that kind.