The 2021 Formula One title race was one for the ages.
Fortunately, the release of season four of Netflix's 'Drive to Survive' series is landing on Friday, giving fans the opportunity to relive the drama and whetting appetites for the forthcoming 2022 campaign.
Few will forget how last season ended, with Max Verstappen pipping Lewis Hamilton in scarcely believable circumstances on the final lap of the final race.
But there had been controversy throughout the year even before that point, making the latest edition of one of sport's great documentaries a must-watch.
Fans will be desperate to learn how 2021 played out behind the scenes, but what should they be looking for? Stats Perform picks out five flashpoints.
Silverstone contact sets the tone
A back-and-forth title tussle between Verstappen and Hamilton was already nine races old by the time the teams arrived at Silverstone – at which point the 'Drive to Survive' producers must have thought they had hit the jackpot.
Hamilton ended a five-race barren run for Mercedes with victory in his home race, but only after sending Verstappen into the barriers at Copse Corner on lap one – a 10-second penalty of little consolation to Red Bull, whose team principal Christian Horner slammed the 2020 champion's "dirty driving".
Seeing the reaction on the pit wall would be of interest to any fan, although this clash merely teed up the drama to come.
Mixed fortunes for furious Lewis in the wet
Two races last year descended into chaos due to the weather, with Verstappen winning in Belgium while Hamilton triumphed in Russia, benefiting from Lando Norris' spin in the rain for his 100th victory. That Sochi result cancelled out events at Spa, where Hamilton had been far from impressed.
Viewers will likely learn more about developments at the 2021 Belgian Grand Prix from 'Drive to Survive' than from live coverage at the time, as the race lasted just two laps under a safety car following Sunday rain.
That was enough to declare a result with half points, with Verstappen rewarded for pipping breakout star George Russell to pole. In public, Hamilton fumed it was "all a money scenario", and it is unlikely he was any calmer in private.
McLaren one-two after halo saves Hamilton
Between Belgium and Russia was the Italian GP at Monza, with perhaps the scariest moment of the season. Verstappen's battle with Hamilton went a little too far as he rode over the Briton's car, with the Mercedes halo required to keep the driver from serious harm.
"I am so grateful I am still here," said Hamilton after being forced to retire, with Verstappen later following him back into the garage.
The documentary cameras surely could not miss this key moment in the title race, but 'Drive to Survive' has been hugely successful in picking out narratives right down the grid – and this was a notable weekend in the midfield, as McLaren profited with a one-two courtesy of Daniel Ricciardo and Norris.
Hamilton heroics at special Sao Paulo GP
Verstappen arrived in Brazil 19 points clear of Hamilton with four races remaining, and the odds were increasingly stacked against his rival over the course of the weekend at the Sao Paulo GP.
Hamilton served a five-place grid penalty when his qualifying time – the fastest on the grid – was struck off for a DRS infringement, meaning he had to start from 10th even after recovering from 20th to fifth in the sprint race. Verstappen escaped punishment when he forced the Mercedes man wide in the main race, too.
Remarkably, Hamilton still won, with Toto Wolff claiming the various setbacks had "woke up the lion". There would have been no final-day spectacle if not for the Briton's late-season charge, which started in Brazil.
Two weeks of epic drama decide title
The final episode of the season will surely focus on the decider in Abu Dhabi, where race director Michael Masi's application of the rules infuriated Mercedes as Hamilton was denied a record-breaking eighth championship in fairly ridiculous fashion.
Footage from that race should entertain even F1 sceptics, with Wolff likely to play a prominent role having pleaded with Masi not to make the contentious call that cost Hamilton and crowned Verstappen.
But the stakes were only such because the pair had entered that race all square in the standings – only the second time this had ever happened – after a similarly eventful Saudi Arabian GP.
Verstappen could have wrapped up the title with time to spare but lost out to Hamilton after a qualifying crash, two red flags and a succession of safety cars, hinting at the level of incident that was to come the following week.