Lewis Hamilton lead a Mercedes 1-2 during the first practice session in Montreal with a 1.14.755, closely followed by the two Ferrari’s and Red Bull cars.
The Monaco Grand Prix race winner was over three tenths clear of on-form Nico Rosberg, and Ferrari’s Sebastian Vettel trailed the championship leader.
The session saw early drama when Felipe Massa was into the barriers down at Turn 1, ending his session; and Williams believe there was a problem with the DRS rear-wing which sent the Brazilian into the barriers.
As the drivers started to push the limits of this semi-street circuit, various drivers cut the final chicane in a bid to avoid clouting the infamous Wall of Champions, with Hamilton, Alonso, Ricciardo, Magnussen, Bottas and several others cutting the chicane.
Before Rosberg got on with the real business, he tested a spoon rear-wing for next weekend’s inaugural European Grand Prix in Baku, but following Massa’s alarming crash the German switched back to the teams Montreal-spec rear-wing.
Following the speculation that Red Bull had leapfrogged Ferrari, Vettel and Raikkonen demonstrated the potential of the team’s upgraded turbo unit, and Vettel was third fastest and less than half a second off Hamilton’s blistering lap-time. Raikkonen was fifth place, and almost half a second slower than Sebastian Vettel.
There were no troubles for Red Bull during their morning outing, and Verstappen lead team-mate Ricciardo, and the Dutchman was is fourth position, whilst Ricciardo sat in a lonely eleventh place.
It was a bitter-sweat first session for McLaren after their Monaco high, Fernando Alonso ended the session in 10th place and ahead of Daniel Ricciardo, whilst Jenson Button’s session was compromised thanks to more reliability issues – and this time for the Brit, it was a hydraulic leak with his upgraded Honda power unit.