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Lewis Hamilton has laid down the marker to beat for the chasing pack as Sebastian Vettel splits the Mercedes duo to set up an intriguing battle in Canada.

The reigning F1 world champion looks in irresistible form around a track he's won at four times in the past and once he focused on qualifying laps he comfortably gapped team-mate Nico Rosberg by half a second with a top time of 1m 14.212s.

Vettel, running a different plan, ended up improving his best efforts later in the session as he claimed second with a 1m 14.469s to push the current F1 championship leader down to third.

The Red Bull duo followed with Max Verstappen in fourth and Daniel Ricciardo fifth but the Renault's power deficit is still prominent with both drivers almost a full second off of Hamilton's pace.

The sister Ferrari of Kimi Raikkonen was dogged by technical issues at the start of the second free practice session which forced to miss him a chunk of it which dropped him down to eighth, behind Valtteri Bottas in the Willams and Jenson Button in his McLaren which has a new power unit - used from Monaco - after needing a change between the two sessions.

Following closely behind Raikkonen was Nico Hulkenberg ahead of the lead Toro Rosso of Carlos Sainz. Fernando Alonso ended the day 11th fastest to confirm McLaren's performance gains from Honda's new turbocharger.

With Sergio Perez 12th, Felipe Massa looked to make up for lost time after his heavy FP1 shunt in 13th ahead of Daniil Kvyat and Romain Grosjean.

Kevin Magnussen found some useful gains to narrowly nip ahead of Felipe Nasr and Esteban Gutierrez with Rio Harayanto completing the runners four-tenths off his Manor team-mate Pascal Wehrlein.