 Complete the following phrase:  Coulthard continued as a driver at Red Bull in 2007, partnered by Webber. He endured a torrid start: Coulthard retired in Australia following a collision with Williams driver Alexander Wurz, and in the following race in Malaysia, he retired with brake problems. In Bahrain, Coulthard ran in eighth position before his car developed driveshaft problems and was forced to retire. He was able to score his first points of the season by taking fifth position in 