Look into the Apex Book in the JA CE, dunno if this is same as US CE book
http://www.gran-turismo.com/jp/products/gt5/campaign/
1 Driving Techniques
2 Mechanism
3 Tuning & Settings
4 Photo Mode
5 Course Index
6 Car Index
Cool interview
http://www.motortrend.com/features/consumer/1009_gran_turismo_5/index.html
"In the game," explains Yamauchi, "you have the luxury of being able to push the car to 100 percent, and not worry about going off. But in the real world, you must tone that down to somewhere around 95 percent, so that you retain a small margin for error. You must remember that you are racing against REAL cars at speeds topping 150mph with REAL hazards and REAL guard rails." So on his second GT5 qualifying lap, he drove as if he was qualifying for the real world, and posted a time of 9 minutes 48 seconds.
During the actual Nurburgring 24-hour race on the following day, behind the wheel of the World Car Awards' Lexus IS F race car, Yamauchi posted a fastest lap time of... you guessed it: 9 minutes 48 seconds, an unbelievable feat that had us all doing a double-take. His performance shows GT5 is as close to real world racing as you can get, without actually jumping into a real race car.
"It was only when I launched the IS F over the Nurburgring's numerous jumping spots (in the real race) that I realized the landing areas were not all flat, as I originally thought in the game," he says. "Some landing patches are sloped to the left, some to the right. This is just one of the many challenges of the track, and amendments I will make to the game. As I pushed the car around the 15.5-mile track, I also realized that some details were different. Some trees which drivers use for cornering or braking markers were not quite in the right place, while some small buildings need to be adjusted too."
In a surprising development, you will not only be able to drive NASCAR racers on their home territory against well-known drivers in the Jeff Gordon NASCAR School, but you will also be able to take them onto the Nurburgring.
Potential Spoiler, picture of the Project X1 Prototype