Hi, I hope I can help you on this one.
1.) Now that you downloaded the file which should end with the word .zip
Open it (usually will open with WinRAR and hopefully you have it. Look for the icon "Extract To" or Extract in general and just click ok
2.) A folder file should be created having the same name with the .zip file you downloaded.
When you click on it, it will show a sub-folder named "content"
3.) Here is the important part.
Click on Start or simply the Windows button of your keyboard.
On the bottom left, where you can type on the search bar (the one with the icon of a magnifying glass)
Search by typing "Assetto Corsa" or "Assetto" or simply "Ass".
4.) This will show Assetto Corsa under Programs. DO NOT CLICK IT. Instead, point your cursor to Assetto Corsa and press right-click on your mouse.
There will be a list of many commands and click on the 3rd action "Open file location"
5.) Having done this will lead you to the root folder of Assetto Corsa.
It contains many sub-folders including 'content'
6.) Remember the folder 'content' from step 2? You will insert this to the 'content' of Step 5.
On the content folder of Step 5, go to the cars sub-folder. You should see a lot of folders with names of the cars present in the game. Open also the cars sub-folder of Step 2 which should have 2 folder files 'mclaren_m23' and 'mclaren_m23-5'
7.) What you do is move these 2 folder files into the cars sub-folder (Hopefully you know how to copy/cut and paste)
If this works, the 2 folder files 'mclaren_m23' and 'mclaren_m23-5' should now be on the cars folder joining the other cars already present in the game.
8.) Try to do the same on the 'driver' folder, moving the driver_73.kn5 to the 'driver' folder of the main game.
The driver folder of the game is also located in the content (actually just below the car sub-folder).
You'll see that there are many driver_.kn5 files there. Just put your driver_73.kn5 together with those already existing driver.kn5 files.
That should be it. Try opening the game and see whether the Mclaren M23 is now available.
If it doesen't work, feel free to message me. I hope you can enjoy this game, the mods are the best part of Assetto Corsa
Woah, you're saying you were able to watch James Hunt compete in F1. That's cool, I was just a kid when Schumacher was dominating in Ferrari and have only watched less than 5 races or so.
