보다 확장된 온라인 월드

-트랙데이
기존에 진행되던 프리매치(GT5P) 뿐아니라, 친구들과 달릴수 있는 기능은 물론이고.
자신이 직접 트랙데이를 열어서 타임어택을 한다던지, 운전하는법을 가르쳐 준다던지, 드리프트를 즐긴다던지,
무한한 재미가 있다!! (정말 그럴듯)

-옵져버 모드
실시간 주행을 관람할수 있다. 리플레이도 관람 가능. (이것도 나름 대박)

-친구 기능
일반적인 친구기능인듯

-커뮤니티
(아래 설명으로는 대단한 설명 없어 보이나, 매우 대단한 기능으로 소개하고 있음;; )
채팅, 블루틴보드, 등등 정도 있는듯

Driving, Gathering, and Interacting;
The Expanding Online World of "Gran Turismo"

Gran Turismo is about to really take off into the vast online world.

A multitude of features will be implemented into the Online system, but let’s show you a small part of what was introduced at E3.

Races and Track Days
First and foremost is the Race. In addition to the free match races like in "Gran Turismo 5 Prologue" where you don’t know who you’ll race against next, it will now be possible to gather your closest friends and acquaintances, set a variety of regulations, and enjoy races how you like it.
And of course racing isn’t the only thing you can do. You can host "Track Days", where everyone can drive freely on the track. You can try to shave down your laptimes, you can teach someone how to drive, or just enjoy drifting. There’s an infinite amount of ways to have fun here.

Spectator Mode
If you’re not quite up to racing on one particular day, or if you just want to watch how someone really good drives, the "Spectator" mode is very useful. You can watch other users driving LIVE, as if you were watching their replay. This is another way to enjoy Gran Turismo, that’s a bit different than before.

Friends
The online play of Gran Turismo 5, supports the "Friend" feature of the Playstation Network?.
Once someone becomes a "Friend", you can not only communicate and race together, but you can also share a variety of data such as the information in "Profile".

Community
The greatest attraction to being online is this Community. You can chat amongst friends before you drive, exchange opinions on the BBS, or send private messages; Gran Turismo offers a wide variety of methods in which you can enjoy communication.