The duo led the way in the extended second free practice session in Montreal which took place after first free practice had to be abandoned because of CCTV problems.
But in the wake of the performance boost delivered by upgrades at the Spanish GP, their form around the Circuit Gilles Villeneuve has raised hopes of a proper challenge again this weekend.
However, both drivers felt that the timing of their low-fuel runs late on in the FP2 session flattered their performance compared to the main opposition.
Hamilton said: “The car didn’t feel bad, but I think we definitely have got some work to do.
“[It was] not the gr …