Can't download any other car besides the Foruma cars, and the Corvette that I am unable on install. Am I missing something?
Seems so. Firstly, there are all the cars listed on the downloads page. Some of the cars are packaged into the packages at the top of the page, download all of those. Install all of those. Update all of those. The Corvette does install. Perhaps some more info on where you are getting stuck will help.
I put it in the Packages folder, and run the Mod Manager. Then, it says " ***Unable to install the following mods*** IsR-Corvette 1690s-WCR-All-Tracks GT World Endurance Championship ISI Forumla Masters
Also when I try to go online, it says the client and server version do not match, while I downloaded the game yesterday
AND, if I want to find a server, all of those say "Get mod". I press that, it takes 10 seconds for it to check 1 thing out of 5, and not doing anything useful.
I got around this by getting the Formula Renault, Renualt Clio & Renault Megane first & installed all of them. The the other mods will install easily.