Former BMW Sauber driver Nick Heidfeld has joined Mercedes as back-up for Michael Schumacher and Nico Rosberg to complete the new team's line-up for the 2010 Formula One season.
Former BMW Sauber driver Nick Heidfeld has joined Mercedes as back-up for Michael Schumacher and Nico Rosberg to complete the new team's line-up for the 2010 Formula One season.