The most powerful "extra option" is the hidden debug menu, left in the game by Black Box developers.
Here are some of the extra options that were available for the Lamborghini NFS Carbon: extra options nfs carbon
Ensure you have the Visual C++ 2013 Redistributable and a compatible ASI loader (often included in the dinput8.dll file). The most powerful "extra option" is the hidden
The mod functions as an ASI script that interfaces with the game engine to enable features that were either left unused by developers or are entirely new additions. Key features include: extra options nfs carbon