I am informed that the Home Office has activated a plan to implement exit checks for people leaving the UK. One way to leave the UK is to drive via the Eurotunnel to France. Another way is to take a ferry from one of the ports such as Dover.
Are people in cars affected? If so, are cars with UK license plates exempted? Also if so, is it advisable to add an extra 60 - 90 minutes to one's journey time to account for an exit check?