Vettel laid down an impressive benchmark in the final part of qualifying, with the German clocking a 1m10.776s to hit the top of the charts.
"I was running a bit out of juice at the end", said Vettel over team radio. The vehicle all weekend has been really strong, every session we made progress with the auto and I'm feeling confident on the track. If I'm on the seventh race with a hard circuit on engines, I want to see it through.
However, when asked a similar question during the official FIA press conference on Thursday morning, he added: "I'm getting really exhausted of all the questions". It's important you feel at home and you have the confidence to play around and I think you can extract a lot more from the vehicle. "If I get any more I might headbutt someone", Verstappen told reporters. Today was a lot more natural.
Vettel, meanwhile, was forced to miss the start of FP2 after lengthy set-up changes were made to his auto, and he conceded that Ferrari have work to do ahead of qualifying. On my final lap, I had a small mistake. "Also myself didn't get the rhythm yet so missing a little bit of the laps but overall we tried to go through the programme as good as we could".
Vettel powered his Ferrari around the 4.361-kilometre Circuit Gilles Villeneuve in one minute 10.776 seconds.
"In terms of race pace, we have seen many times this year it's very close between the three teams and the six drivers. We'll see. For sure if you start on pole you want to win".
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Verstappen's teammate, Australian Daniel Ricciardo, ran third in practice, with Ferrari's Kimi Raikkonen between them.
Vettel believes Ferrari have made the right call with strategy, particularly as it means they are likely to be able to run longer before making their first stop, and admitted his surprise with the direction Red Bull took.
Sauber's Marcus Ericsson also didn't make it out of Q1, he glanced the wall in Turn 9 and was lucky to not break something on the auto, as he continued on he almost collided with a Red Bull, narrowly avoiding contact.
"Our goal is to finish every single race so I'm hoping for the reliability and I can try and make the difference on the track with my driving".