I already posted a similar script forVice Citybut for many it didn't work. There is a new version in which all the shortcomings are fixed. Now, you can rotate the camera in vehicles like inSan AndreasandIV
Show SpoilerHide Spoiler
1. To work, you need theCLEOforVice City ; 2. Unpack the archive; 3. Files[VC]VehCameraMovement.txtand[VC]VehCameraMovement.csmove to folderCLEO, which is located in the folder with the game; 4. Play.