GTR2 Steam Discussion post with valuable low-level details about manually fixing issues

Note: You probably don’t need any of this if you followed the Minimum GTR2 steps. But I’ve left this hear for the low level details.

I felt the following Steam comment was worth preserving as it has some very specific information that might be valuable for some people in the future.

The Ultimate Guide

How to fix everything, restore removed content and some other things.

By GUGA510

Before You Start

Right click on these files, click "Properties" and then "Compatibility" tab.

GTR2.exe - Run as administrator
GTR2Config.exe - Run in compatibility mode Windows XP (SP 3) and Run as administrator
sudo.exe - Run as administrator

Restore Ferrari and Porsche Cars

1 - Open "GTR2.exe" with a hex editor such as HxD[mh-nexus.de]
2 - Navigate to offset "0026CFC0" or press CTRL+F and search for the text string "ferrari"
3 - Replace the "50 4F 52 53 43 48 45" and "46 45 52 52 41 52 49" strings with "FF FF FF FF FF FF FF"
4 - Save and exit

Note: Make a backup of GTR2.exe in case you do something wrong.

Restore Ferrari and Porsche Selection in Single Makes

1 - Open "GTR2.exe" with a hex editor such as HxD[mh-nexus.de]
2 - Navigate to offset "0027C490" or press CTRL+F and search for the text string "porsche"
3 - Replace the "50 6F 72 73 63 68 65" and "46 65 72 72 61 72 69" strings with "FF FF FF FF FF FF FF"
4 - Save and exit

Restore NGT's 2003 and The Prancing Horse Selection in Specials

1 - Open "GTR2.exe" with a hex editor such as HxD[mh-nexus.de]
2 - Navigate to offset "0027C4A0" or press CTRL+F and search for the text string "ngt's"
3 - Replace the "4E 47 54 27 73 20 32 30 30 33" and "54 68 65 20 50 72 61 6E 63 69 6E 67 20 48 6F 72 73 65" strings with "FF FF FF FF FF FF FF"
4 - Save and exit

Restore Ferrari and Porsche Custom Championships

1 - Open "GTR2.exe" with a hex editor such as HxD[mh-nexus.de]
2 - Navigate to offset "0026CD00" or press CTRL+F and search for the text string "pan"
3 - From the hex value:

"50 61 6E 20 45 75 72 6F 20 52 53 20 32 30 30 33 20 52 6F 6F 6B 69 65 20 43 75 70" (Pan Euro RS 2003 Rookie Cup)

to

"54 77 6F 20 4E 61 74 69 6F 6E 73 20 45 6E 64 75 72 61 6E 63 65 20 43 68 61 6D 70 73" (Two Nations Endurance Champs)

Replace everything with "FF FF FF", skipping only the zeros, like this: "FF FF FF 00 00 FF FF FF"

You'll end at offset "0026CF80"

4 - Save and exit

Fix Invisible MoTeC

1 - In "GTR2Config.exe", make sure you set compatibility with Windows XP (SP 3) and is running as Administrator
2 - Click to play the game and then click in "Video Options" to set your Resolution and 32 bit

Note: If you already configured your video before following these steps, you'll need to configure again. That's because the GTR2Config.exe can't detect 32 bit if it's not in compatibility mode, even if it's showing 32 bit in the config screen.

Fix Arms in Rearview Mirror

1 - Go to this folder: ..\SteamApps\common\GTR 2 - FIA GT Racing Game\UserData\YourName
2 - Open "YourName.PLR" with any text editor
3 - Press CTRL+F and type "Rearview Front Clip"
4 - Change the value to "4.00000"

Increase Game Performance

1 - Start the game
2 - Press ALT+TAB
3 - Press CTRL+ALT+DEL to open the Task Manager and select "Details" tab
4 - Right click on "GTR2.exe" and click in "Set Affinity"
5 - Check "All Processors" and click OK

Fix Playtime Count

1 - Start the game
2 - sudo.exe will be executed and the game will start
3 - Exit the game
4 - Start the game again

Unlock All Tracks

1 - Open Notepad and click "Save As..."
2 - While in the save screen, go to this folder: ..\SteamApps\common\GTR 2 - FIA GT Racing Game
3 - Change "Save as type:" to All Files*
4 - Name the file "SDNDTG.DYN" and save

* VERY IMPORTANT

You NEED to select "All Files", otherwise the file will be saved as "SDNDTG.DYN.txt"

Easier AI in Simulation Difficulty

1 - Go to this folder: ..\SteamApps\common\GTR 2 - FIA GT Racing Game\GameData
2 - Open "Settings.ddb" with any text editor
3 - Press CTRL+F and type "Professional"
4 - Change "AIStrength" to 80
5 - Change "AIAggression" to 0.70

Now you can change the Strength from 80% to 120% and the Aggression from Timid to Psychotic.