The Scot, who had originally qualified 16th, used his fresh V8 Ferrari to good advantage as a late first pit stop (Lap 29 of 70) saw him rocket through the field to tenth. He dropped a place to Villeneuve during the refuelling but later gained two places with another late stop on lap 53.
A safety car period six laps later enabled the field to bunch back up, and with Jenson Button clearly struggling to get any performance whatsoever out of his Honda, Coulthard sensed that an eighth position and a point were on the cards.
Button struggled for grip in the hairpin and lost traction, allowing Coulthard to get alongside and ultimately through for eighth under braking for the next right/left chicane.
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"That was the most difficult Canadian Grand Prix I've ever done in terms of track surface and balance," Coulthard said. "I didn't expect to get a point from the back of the grid to be honest.
"The balance of the car was difficult throughout, but the team did a really good job with the strategy and my engineer Mark (Hutcheson) kept me well informed with what was going on, so thanks to him.
"The hairpin was really difficult due to all the debris around there. The amount of rubber that comes off the tyres now is incredible, so if you go one inch off the driving line, the debris can suck you in and Jenson just got sucked in, so I was able to overtake.
"I'm delighted to get a point for Red Bull Racing, now let's see what Indy brings."
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