I Don't Have THe Vehicles Folder But I Have The Vehicles And I Have The Levels Folder. So How Can I Get THat Folder?
Just create it, if that's what you need to do to install a particular mod. Have a look at this guide so you can make sure you're doing it right: http://www.beamng.com/threads/12872-Guide-to-mod-installation-for-0-4-0-0-and-up