Lewis Hamilton faces a nerve-wracking scrap in Mexico's power-sapping altitude this weekend before completing the apparent formality of claiming his fifth Formula One world title.
Just a week after a bruising defeat in Texas, where a resurgent Ferrari out-performed them at the United States Grand Prix, Hamilton and Mercedes have licked their wounds in readiness for an even more challenging contest.
"We have a battle on our hands," admitted Mercedes team boss Toto Wolff.
"But it provides us with an opportunity to learn and come back stronger."
Given that Hamilton has won six of the last eight races and has a 70-point lead over fellow four-time champion Sebastian Vettel of Ferrari with three races remaining, it outcome may look inevitable. Mercedes lead Ferrari by 66 in the teams' title race.
On paper, Hamilton requires only five points to draw level with the legendary five-time champion Juan Manuel Fangio in the record books with five world championships, leaving only Michael Schumacher, on seven, to catch.
For Mercedes to seal a fifth consecutive team title, they must outscore Ferrari by 20 — a more difficult task that will be complicated by the likely speed and belligerence of the Red Bull team.
Max Verstappen won last year's race at the Autodromo Hermanos Rodriguez, where the thin air at 2,200 metres (7,200 feet) above sea level reduces engine effectiveness and places a greater premium on a car's aerodynamic performance.
All this suggests a fierce battle lies ahead with Vettel, who had the speed to win last weekend, and has no choice but to attack. He can only keep his title dream alive by winning all three final races while Hamilton fails to score five points.
The Englishman, however, knows he can cruise to finish seventh and take the title whatever else happens around him.
Last year, he took his fourth title by finishing ninth after being lapped by Verstappen.