Sauber have unveiled a new-look car with slimmer sidepods and two new drivers but declined to say whether they could improve on last year's sixth place in the Formula One constructors' championship.
The new car, the Sauber C32-Ferrari, is visually very different from its predecessor, boasting a smooth, slightly downward-sloping nose section and much slimmer sidepods.
The car will get its first run at Jerez in Spain this week.
Germany's Nico Hulkenberg, who has joined from Force India and has two Formula One seasons behind him, will team up with Formula One rookie, 21-year-old Mexican Esteban Gutierrez.
Dutchman Robin Frijns is the test and reserve driver.
Sauber managed four podium finishes and 126 points last season, compared to 44 points in 2011, although the team was somewhat inconsistent.