With that said, someone with access to the demo also received an email from Sony that wanted to emphasize this is not a demo of Gran Turismo 5, and is only being released for GT Academy.
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The demo was specifically designed for this competition to showcase the realism of the brand-new physics engine and to challenge players’ driving skills using professional driving physics and many of the driving assists disabled. The full Gran Turismo 5 will feature multiple driving assists and various settings that can be changed to make the game easier or more challenging and realistic.