Just seen this now :o
The way the UK do it is all competing members who gain points through normal competition rounds, once they gain points individually, their points can also get allocated to a "Team" and so on for all team members. Each team gathers points over the season by doing well in the Championship.
Then in the Team events, there are only 3 members in the UK teams, the teams battle in a top 8 knock out, same format as twin battles except top 8 the team members go out in their teams (of 3) and gain points from their runs.
And in the semi's and final 2 teams battle against each other so theres 6 cars on track at once!

