SCS do also mention that they've not widely promoted the experimental branch just yet in order to manage expectations. That's also where they've handed out details on unlocking the experimental branch if you're keen to see the work in progress for yourself. SCS have outlined all the other current features and known issues in the Convoy game mode over in their forum post. 'There is also an option, before you leave the Convoy, to restore your game progress to a previous save game state, which may be handy if you are not happy with what happened to your truck, cargo, or wallet during your Convoy driving session,' SCS say, while looking directly at that one co-op pal in the group, I imagine.
Any player can host and create their own private sessions for up to 8 people.Here's what the experimental version of the Convoy mode allows for so far: