Formula One is nearing the end of its current season. Four races remain, in Mexico, the U.S., Brazil and Abu Dhabi, and there is plenty of business to decide on and off the race track.
Here's a look at the most pressing issues likely to generate the most headlines between now and the end of the 2019 campaign.
F1's very own Brexit?
Hanging over everything at this weekend's Mexican Grand Prix will be discussions over F1's imminent future, with that race the final opportunity for teams to talk in the paddock ahead of the deadline to decide the 2021 rules, Oct.