 Complete the following phrase:  BMW Saubers first race victory came in the 2008 Canadian Grand Prix, the team achieving a one-two finish with Robert Kubicas first race win and Nick Heidfeld taking second place. The victory came after Lewis Hamilton collided with Kimi Räikkönen in the pitlane, ending the race for both drivers. Kubica was on a different refuelling strategy from Heidfeld, who also briefly led the race before securing the one-two finish for BMW Sauber in comfortable fashion. This was the first Formula One victory for a BMW engine since the 