Team principal Monisha Kaltenborn says the car "is based on its predecessor which was a very competitive car."
In 2012, Sauber placed sixth in the constructors' championship, getting four podium finishes from drivers Sergio Perez and Kamui Kobayashi. Perez, a 23-year-old Mexican, was hired by McLaren and Japan's Kobayashi has left the team.
Kaltenborn praises Hulkenberg as "a very efficient driver" who "if (he) gets an opportunity, he takes that and brings the result home."
The 25-year-old German finished 11th in the drivers' standings last year for Force India.
Gutierrez, a 21-year-old Mexican, makes his F1 debut in Australia on March 17.