Pastor Maldonado and Kamui Kobayashi were fined after incidents during the British Grand Prix, and Maldonado also received a reprimand.
Sauber moved up the order in 2011 but face a challenge to continue their progress this year in the face of stronger midfield opposition.
Sauber’s disqualification from the first race almost cost them a place in the constructors’ championship.
Kobayashi says Sauber’s struggle began at Silverstone.
Sauber held on to seventh in the constructors’ championship.
Pictures from the Brazilian Grand Prix at Interlagos.
Pictures from qualifying for the Brazilian Grand Prix.
Sebastian Vettel put Red Bull on top in the final practice session for the Brazilian Grand Prix.
Pictures from Friday practice for the Brazilian Grand Prix.
The drivers who shared the front row of the grid for the last race were quickest in second practice.
Mark Webber headed the first practice session for the Brazilian
Pictures from Thursday at Interlagos including Kamui Kobayashi’s special helmet design.
Who was the most impressive driver throughout the Abu Dhabi Grand Prix weekend?
Kamui Kobayashi scored his first point since the German Grand Prix.
Lewis Hamilton won his third race of the year after Sebastian Vettel surprisingly retired from the Abu Dhabi Grand Prix.
Fernando Alonso extends his lead over Mark Webber for third in the drivers’ championship.
Lewis Hamilton wins the Abu Dhabi Grand Prix, ahead of Fernando Alonso and Jenson Button.
While Hamilton lost time in Q3, Button got quicker.
Sebastian Vettel matched Nigel Mansell’s record in qualifying for the Abu Dhabi Grand Prix.
Sebastian Vettel on pole position again in Abu Dhabi.