Toto Wolff says Mercedes are dealing with 'unfinished business' at the Brazilian Grand Prix as they look to secure a fifth consecutive constructors' championship at Interlagos, as well as bounce back from a Mexican GP which frustrated the Silver Arrows, despite Lewis Hamilton's title triumph.
Hamilton secured his fourth crown in five years and fifth overall by finishing fifth in Mexico, however both the Brit and team-mate Valtteri Bottas went backwards on raceday as Mercedes struggled to get their heads around the tyres.
Ever the perfectionist, Wolff has laid down the challenge to his team to get back to their best in Brazil.
"Mexico was a bittersweet weekend," he says.
"On the one hand, we're extremely happy for Lewis. He is the best driver of his generation and his fifth Formula One World Championship puts him among the absolute greatest this sport has ever seen.
"On the other hand, we cannot be satisfied with our race performance in Mexico.
"Qualifying looked promising but just a few laps into the race, we knew that we'd run into big issues with the tyres.
"We started to analyse those problems immediately after the race and have made progress with understanding the challenges we faced and why. It's important to apply all our learnings to make sure we come back strong in Brazil.
"Our target for this season was to win both championships, not one title or the other, so our mindset is one of unfinished business as we head to Sao Paulo.
"We have a big battle on our hands for the constructors' title and we have lost ground to Ferrari in each of the past race weekends - even though we had the base performance to do better.
"This is the moment to keep our feet on the ground, focus clearly on the objective and trust in our processes and people to deliver."