It would be a nice change to view Empire Bay in this way.
This camera was removed from the game.
Mafia2FPV
You can try try this camera with a LUA command. Here´s an example:
Question: Could an optional first person point of view be added?
2k answer: This is also a design decision for the team – Mafia II is a third person game, and that’s all it’s intended to be.
Source: 2k forum