i believe its like orienteering but in a car , drive though different terrians and over things to get little punches in a card . and the card is usually attached to the passenger side wing mirror and cannot me removed , and i think the winner is who has the most punches ? presume its bit like a winch challenge but someone correct me if im wrong
heres what the punches look like (the spikes vary to different punches)
and the cards look similiar to this
