Mercedes boss Toto Wolff says "question marks" still exist over the team's optimal set-up despite its one-two finish at the Canadian Grand Prix.
The world champions recovered from a poor showing in Monaco, a rare instance of Mercedes finishing with neither driver on the podium, to win in Canada with Lewis Hamilton leading home Valtteri Bottas. Wolff later admitted the team had worked 24/7 since its Monaco setback to resolve the tyre warm-up issues which had led to the downturn in performance.
Wolff is refusing to get carried away after one strong showing for the team.
When asked if he felt Canada marked a fundamental breakthrough for the team, he replied: "I never feel that.