The rules are like this:

Nobody speaks, unless when on one of 3 chairs

• the driver's seat

• the navigator's seat

• the question box

There are 2 empty seats for indicating you wish to take over (without speaking)

• next to the driver's seat

• next to the navigator's seat

The question box is not allowed to ask Model: Leading Questions

• when you want to lead, take over navigation

The rest is regular mobbing

• The driver drives

• The navigator navigates