8. The only customisation available to Niko will be his clothes.
The weight fluctuation, bulking up and fitness control from San Andreas has been thrown out of the window. Custom hair styles have bit the dust too. The only way you'll be able to customise Niko is with his clothes. But don't fret - his outfit will have an effect on the gameplay. Keep wearing the same stinky clothes for too long and your mates will start to take the piss. Dress up in sharp suits and you'll impress the ladies. Some missions require a change of clothes - you'll need to wear a suit for that interview with the lawyer. There will be clothes shops of varied quality too. Perseus is one expensive chain. But if you're short on cash there are cheap Russian shops that make Primark look like Gucci, although expect ridicule.
7. GTA 4 won't have real world products.
So don't expect Niko to use a Nokia phone, listen to Classic FM or nick a Porsche. What I have discovered is that there will be different brands of phone, one of which is called Whizz - you'll see billboards advertising the phones all over Liberty City. You'll be able to upgrade them too. Better phones will give you more options, allowing you to take photos and change your ring tone. Certain missions, I'm told, will require you to take a picture, nick a cop car, access the police database and search for a name and address via the picture. All the radio stations are made up, in order to keep the GTA satire thing going. And while all the vehicles are fake, they are inspired by real world counterparts. The Banshee, GTA 4's fastest, coolest car, looks a lot like the TVR Tuscan.