After confirming a few weeks ago that 2012 Force India’s driver – Nico Hulkenberg – would move to their team in 2013, Sauber just announced today that their 2012 reserve driver – Esteban Gutierrez – will be promoted and fill the team 2nd driver place in 2013. Mexican Esteban Gutierrez, aged 21, drove in GP2 2012 championship for Lotus…