"Factors like temperature, pressure and humidity are all calculated to help simulate weather conditions that change dynamically," Polyphony explains, which will naturally affect car performance.
Veteran Gran Turismo series tracks Trial Mountain Circuit and Mazda Raceway Laguna Seca will return "rebuilt from scratch to drastically improve their quality," says PD.
Gran Turismo 5 is due out exclusively for PlayStation 3 on November 5. No, really.
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