A thrilling Formula 1 season is set for what could be the most dramatic conclusion in the sport's history at the Abu Dhabi Grand Prix this weekend.
Both Mercedes' Lewis Hamilton and Red Bull's Max Verstappen go into the final race of an epic season locked together on 369.5 points - only the second time this has happened since F1's first season in 1950.
Whatever unfolds, history will be made - either 36-year-old Hamilton will claim his eighth world title and become the sport's most successful driver ever by surpassing Michael Schumacher.
Or, 24-year-old hotshot Verstappen will win his first title to usher in a new era, in which he leads the current crop of younger drivers.
It's pretty simple: with 25 points for a win, 18 for second and a bonus point for the fastest lap, whoever finishes ahead takes it all.
The only thing in the back of both drivers' minds is that, if neither finish the race - or accrue any points by finishing outside the top 10 - then Verstappen would win based on victory countback across the season.
The Dutchman has nine wins, to Hamilton's eight.
Will it be a classic race?
For a sport often maligned as predictable, F1 has never been so difficult to call. The last race in Saudi Arabia was a classic - the first at Jeddah's high-speed street circuit, surrounded by walls, which saw several crashes and risky moves as drivers battled for an edge on a layout none of them knew.
The Yas Marina circuit in Abu Dhabi has been on the F1 calendar since 2009 and has gained a reputation for hosting mainly uneventful races on a track where it is difficult to overtake.
However, just in time for this season finale, drivers and teams have a revised circuit to contend with - including the removal of a speed-sapping chicane, introduction of a long banked corner and several other profile changes. All of which should keep the racing unpredictable.
How to follow it on the BBC
BBC Sport has live coverage of the race across the BBC Sport website and 5 Live, plus live digital coverage on the BBC Sport website and app - including audience interaction, expert analysis, debate, voting, features, interviews and audio content.
All times are GMT. Broadcast times are subject to change at short notice.
If you're viewing this on the BBC News app, you will need to click here to view the times.
|Abu Dhabi Grand Prix coverage details (all times GMT and subject to change)|
|Date||Session||Time||Radio coverage||Online text commentary|
|Preview||Listen and download here|
|Sunday, 12 December||Race||13:00-15:00||BBC Radio 5 Live and BBC Sounds||From 11:00|
|Chequered Flag podcast: Abu Dhabi Grand Prix review - download here once the race has finished|