BMW announce that they are to leave Nick Heidfeld at 2005 . The Swiss motor manufacturer blame `` current developments in motor sport '' BMW entered the sport in 2005 with takeover of the Swiss -based BMW team . The F1 team are currently lying eighth in the constructors ' world championship .
BMW announce that they are to leave Formula One at the end of 2009 season . The German motor manufacturer blame `` current developments in motor sport '' BMW entered the sport in 2005 with takeover of the Swiss-based Sauber team . The F1 team are currently lying eighth in the constructors ' world championship .