Other changes:
Changes and Additions to Gameplay
* It is now possible to replay and save [2P Battle] races.
* [Controller Steering Sensitivity] has been added to [Driving Options].
* [Corner Bank Angle] has been added to the section settings in [Course Maker].
* In A-Spec events including endurance races, a confirmation prompt has been added before restarting a race from the beginning.
* In replays, B Spec and while watching races, you can now change viewing targets directly from the screen without having to use a separate window list.
* Personal BGM can now be used when voice chat is disabled in a [Lounge].
* Cars in your garage that are not registered as ‘Favorites’ can now be used in a [Lounge].
* When tire restriction is enabled in a Lounge regulation, only cars with tires that qualify will be displayed in the garage.
* Driver and car display selections during races will be saved.
* Karts now have [Quick Menu] settings.
* You can now select multiple items in some important menu screens, such as when registering your favorite cars in your [Garage].
AI Adjustment
* Race choreography and opponent car AI controls for licence tests and A Spec events have been adjusted.
* Opponent car AI controls during B Spec races have been improved.
* The evasive maneuver of opponent cars when a players car blocks the track has been improved.
Correction of Issues
* Corrected an issue where it was possible to gain points unfairly in drift trials.
* Corrected an issue where it was not possible to view the 4th sector in the live monitor.
* Corrected an issue where the sound effects would not change when replacing the exhaust system or turbo kit.
* Corrected an issue where the save data becomes unable to load when exceeding a certain file size.
Other Changes
* A searchable item called [Race Type] has been added for room creation in the [Open Lobby].
* The lap times for the [X Challenge] in [Special Events] have been adjusted.
* Game save speed has been optimized.
* The HDD access warning message that was displayed at game startup has been disabled for faster startup.
* Car demo backdrops during an [Auto Demo] is now displayed randomly in 4 types (Morning/Day/Night/White) as is in the [Dealership].
* The “S-AWC” integrated four wheel drive system of the Mitsubishi Lancer Evolution X has been adjusted.
* The [Force Feedback Strength] of the Thrustmaster T500RS can now be adjusted across a wider range.
http://www.thesixthaxis.com/2011/02/18/gt5-hits-1-06-is-now-awesome/
All that is missing is Ai in 2 player mode!!! But awesome loaded update