This is my first time visiting this board so here i go:

1) Is this open-world?

2) can we drive cars? (like borderlands style)

3) Will there be multiplayer?

4) How long is this supposed to be?

It is open world and we will be able to drive cars, race cars and blow up cars. It will have multiplayer.

I'm not sure about the length of the game but it looks pretty long

Well...

1) Yes it is. The world is big and there is many things to explore. (if I remember... is the world like in Borderlands where there are open world in some parts?)

2) Yes. Driving is a big thing for this game. You can travel on it and race.

3) Yes. There is gonna be some game like arena. Where you have some big place where drivers on cars are kill each other for last man standing. And if I remember there will be also Team Deathmatch.

4) They are saying the story is gonna take like 19-21 hours gameplay. But there is also a side-missions and place to explore. So in all, really long time.