The Sauber C34 was a Formula One racing car designed by Sauber that competed in the 2015 Formula One season. It was driven by Marcus Ericsson and Felipe Nasr. The C34 was launched on 30 January 2015 with a blue and yellow livery. On 19 February 2015, Sauber face-lifted their nose by adding a yellow bit to the front nose, and added the drivers' numbers on the sides of the nose.