Summary: Out of my collection of about 30 games, this is clearly the best in every way, and whenever I get tired of playing another game, I know I can come back and play Gran Turismo. There are over 800 cars in the game and I don't even know how many courses. I can purchase almost all my favorite cars and race them on onroad or offroad courses. They have a good range of cars too. Cheap cars, expensive cars, old cars, new cars, powerful, not-powerful, you get the idea.
Summary: Finally Gran Turismo makes it to the PSP after an aborted release a few years ago. Anyone who trained on GT4 will adapt quickly as many of the same tracks are available here. Differences are the "single race" mode is similar to the old "arcade" and the "driving challenges" so far are mainly short tests, but there are 50+ tests. Somewhat easier than GT4 you don't have to get gold in order to pass a challenge, bronze will do.
Summary: The game is interesting, the basic operations were easy to learn about, there are different levels, different cars to choose from and different trucks you can race on. It is little bit hard to stop or to reverse.
Summary: Gran Turismo is simultaneously one of the most comprehensive portable video games ever made, and yet something of a let-down. Coming from a distinguished line of driving simulators long-revered for its pin-point driving physics, supreme track design and immense depth, the series' first portable foray has all of the above in spades, though its open-ended nature and loose structure are both a blessing and a curse.
Pros: Mammoth selection of superlative tracks and cars; great handling; incredibly smooth
Cons: A.I. still isn't up to much; occasional ugly visual moment; loading times; poor sound