"It's more than a game now," Loeb told me a year ago. "It's so precise that this 'game' has become a full-blown driving simulator, and just about every driver I know uses it for practice these days."
.....Even Formula 1 racing drivers such as Toyota's Jarno Trulli and BMW's Kazuki Nakajima have been seen practicing in front of a console. Whenever a new track comes onto the racing calendar, like Fuji Speedway did last October after a 30-year absence, and drivers cannot get there to practice for real, many fire up "Gran Turismo." They say it's the only way to memorize the track layout and braking markers the points where you must start killing the speed to take an upcoming corner.
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I think there's a picture of a HD version of the Nurburgring 👍