Britain's Lewis Hamilton, driving a McLaren, won the Canadian Grand Prix for the first victory of his Formula One career.
Championship leader Hamilton started from pole position and held on to become the first rookie race winner since Colombian Juan Pablo Montoya with Williams in 2001.
Hamilton now has an eight-point lead over McLaren-Mercedes team-mate and reigning double world champion Fernando Alonso, who finished seventh, in the championship standings.
Germany's Nick Heidfeld was second for BMW Sauber and Austrian Alexander Wurz third for Williams.
Hamilton had finished on the podium in all five of his opening races before today's race at the Circuit Gilles Villeneuve.
In an incident packed race, Ferrari's title contender Felipe Massa and Renault's Giancarlo Fisichella were disqualified while BMW's Polish driver Robert Kubica was taken to hospital after a horrific crash.
The safety car was deployed four times.
Hamilton showed great composure, while those around him were scraping into walls and pirouetting around corners, to confirm his status as a future champion.
Hamilton gained the upper hand over Alonso at the first turn when the Spaniard ran wide, sped over the grass and found himself stuck behind Heidfeld in third place.
By lap five Hamilton was 3.2 seconds clear of Heidfeld with Alonso trailing a further 1.2 seconds behind in third.
Alonso later received a ten-second penalty for entering the pit after the safety car had come out, effectively ending his chances.
Alonso's dismal day was completed when he was overtaken by Japanese driver Takuma Sato's Super Aguri with two laps remaining.
Kubica was flown by helicopter to hospital after his BMW hit a Toyota on the approach to the hairpin on lap 27 and took off, flying through the air and slamming into a concrete wall at high speed before barrel-rolling across the track.
Television reports said the Pole had broken a leg.
