How 2 install Mods / tracks / cars.
If you have the space make a back up of the rFactor folder. If all goes wrong its easier to replace it than reinstall.
There are 3 methods of adding to rFactor.
Method 1.
double click on the exe file and work your way through the dialogue boxes. Should be easy.
Method 2.
Drag and drop the rFactor folder into program files. Extract it if you wish or just drag straight from winrar. XP/Vista will ask if you wish to overwrite. You do so "Yes to All".
Method 3.
Same as above but there are seperate folders rather than a rFactor folder. drag the folder/s into the rFactor folder. Not the program files folder. You will be asked to overwrite again.
If in doubt read the READ ME