We have several new screenshots from Grand Theft Auto IV, illustrating the next installment of the series in the works at 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. Developed for PS3 and Xbox 360, Grand Theft Auto IV is currently planned to be in stores in the first half of 2008.