Things to know about GTA V Online

    You can insure your car

    All of the activities you can do in Single Player you can also do in GTA Online, which include, robbing stores, heists, races, gang attacks, sports like tennis, BASE jumping, golf and more, plus 'ambient' events like armoured van robberies, crate drops, import/export car acquisition, bounties, the stock market and more

    Online you can earn RP, Reputation Points, cash and more, including houses which you can equip with cctv, deluxe garages that can house 10 customized vehicles, tvs and more.

    Trains, planes and dynamic events all work online. No more will the world feel like a lite version, like it did in GTA 4.

    Vehicle radios are shared, so as a passenger you can change the radio station

    When sticking up a store online, if you shout demands into your headset such as "load the money into the bag quicker!" the AI will comply and hurry up.

    When doing robberies, whoever does the job gets the cash and can decide how much to share with your friends

    Your custom cars show as markers on the map and get impounded if you leave them too long. Simply pay to retrieve them.

    Rockstar will constantly add missions and content to GTA Online, plus players can create their own missions using the Creator tools.

    it's possible to spread the wealth by sharing cash, weapons and ammo among your team. In turn, they can 'defect' and try to steal your cash so, like life, GTA Online is an exercise in trust and social dynamics.

    If you get killed holding all your cash, a portion will spill onto the streets. It's important to keep cash for your daily activities, and deposit the rest in the bank. Or wager it on races. Or invest in the stock market

    You can use an ATM to deposit and withdraw money

    You can even attack listed companies and damage their share price. At one extreme, you might need a bodyguard to make drops at the bank. In your house, you can take showers, use your cctv to see who is at your front door, surf the web and watch TV. From the safety of your house, you can watch people within your 16-player game being chased by the cops, just like Police Camera Action.

I'm struggling to believe its going to be as good as the video, is there such a thing as overhype for a GTA game?

Read these 

I wish I had booked the week off work 

http://m.uk.ign.com/articles/2013/09/04/10-crazy-awesome-things-i-saw-and-did-in-grand-theft-auto-online

http://www.rockstargames.com/newswire/article/51281/introducing-crew-hierarchies.html