Ferrari has introduced an updated power unit for the race at the Circuit Gilles Villeneuve, using three tokens to develop its engine. Vettel ended FP2 second quickest - 0.3s behind Lewis Hamilton - having done limited running in the opening session, and when asked if it was a difficult day easing in a new power unit, Vettel replied: "No easing in, we went flat out straight away.
"Obviously time is very valuable and you try to get as much information as soon as possible and I think everything seemed to be working as expected."
And while Ferrari looks capable of challenging Mercedes in race trim, Vettel is wary of jumping to early conclusions following a shortened day of running.
"They are quick, we know that, anything else would be a surprise. Of course we would take it but I think we have to wait, it was a rushed programme for everyone and it’s not so clear what everyone was doing in terms of fuel loads and stuff. We have to be cautious - I think we can still improve but let’s see what happens tomorrow and particularly Sunday."
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