After long time I decided to do further analysis of screenshots. I´ve choose 3 pictures, what published the server cynamite.de.

1) Two real Empire building and Chrisler skyscrapers.
2) Taxi maybe it will be used to transfer certain place.
3) Notice a realtime shadow.
4) Licence number: AAAAA - in the game will arbitrarily change the signs, so you don´t have to worry about that all cars have the same licence number.
5) Scared womens face is the detail, but overall it will improve the atmosphere of the game.

1) Tilt car window just proves good model of damage.
2) Cover system is similar to the Gears of war.
3) In the background you can notice a brige. I think, that you can already see at a artwork is Brooklyn bridge and perhaps it is also the same mission, but that´s only speculation.
4) Various effects, that in the movement will look beautiful.

1) On the metal parts of cars are still the same highlights, because the realtime reflections would be too demanding on the hardware.
2) The policeman, who tries to stop the gun battle.
3) Each car in the mafia 2 will be in several design. Same as this truck. His version we can see in the russian magazine Igromania.
4) Finally, the normal plate has no AAAAA.
5) Protect will not only you, but also enemies.

If you’ve noticed something even more interesting as I overlooked, write it to the discussion.