Rockstar Games has announced that the Grand Theft Auto IV final trailer will be released on March 27th. Developed by Rockstar North, Grand Theft Auto IV is powered by Rockstar's proprietary next generation game engine, R.A.G.E., allowing for an unprecedented level of realism and interactivity. The game is also using euphoria, a fully procedural animation engine created by NaturalMotion. Grand Theft Auto IV will hit the store shelves on April 29th, for Xbox 360 and PS3.