Gran Turismo 4 features authentic racing gameplay with new fully-enhanced features that focus on more cars, courses, race modes.In gameplay, players will have the opportunity to race in an enhanced arcade and simulation mode based upon similar game mechanics from Gran Turismo 3 A-spec. In both modes, players will have access to experience more than 500 authentic automobiles encompassing manufacturers from around the world, with a range from vintage to modern vehicles. Courses include existing closed racing circuits to specially designed city courses, reaching a total count of up to 100 tracks. To further enhance the realism of the driving experience, new technology blends real-time action with a photo-fixed background to immerse the player in real-life environments such as New York City, the Grand Canyon and others. Highly detailed vehicles and environment mapping create broadcast-quality graphics, from light and competitor car reflections on the player's automobile to leaves on a tree shaking in the wind.