Nick Heidfeld joins Mercedes as back - up for Michael Schumacher and Nico Rosberg . The German will be reserve driver for the new team and also take on testing role . ( CNN ) -- 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 . The year - old spent the past four years at BMW Sauber and has driven in 167 races . He has had an association with German teams since his early days as a driver .
Nick Heidfeld joins Mercedes as back - up for Michael Schumacher and Nico Rosberg . The German will be reserve driver for the new team and also take on testing role . The year - old spent the past four years at BMW Sauber and has driven in 167 races . He has had an association with German teams since his early days as a driver .