check out this video:
http://www.youtube.com/watch?v=KEUzLSeuY4A&eurl=http://www.gtplanet.net/gran-turismo-psp-cockpit-view-gameplay-footage/&feature=player_embedded
It's a very basic and dark one that's true, but for me the cockpit perspective is the most important, not the actual interior of the car. Great stuff.










