Renault has been unable to fix Kevin Magnussen's car for qualifying after his heavy FP3 shunt and will start the Canadian GP from the pit-lane.
On a relatively calm out lap Magnussen lost control of his rears accelerating out of turn seven and with the wall so close to the edge of the track he wasn't able to stop his car from slamming into the barrier, wrecking the whole left side of the car, the rear wing and gearbox.
Magnussen gingerly stepped out of the car after the crash but is reported to be okay. He has apologised to his team for giving them an extensive repair job with just two hours to repair the car for the start of qualifying.
Renault is still investigating the cause of the off after TV replays were inconclusive. Magnussen was accelerating out of turn seven switching up from second to third gear when his rear tyres instantly spun and started sliding.
Magnussen – whose shunt prematurely ended FP3 – finished the session 19th quickest with a best time of 1m 16.085s. His Renault team-mate Jolyon Palmer grabbed 16th in the session with a best time of 1m 15.656s.