Sauber have only one win to show for their longevity and that came with Robert Kubica at the 2008 Canadian Grand Prix when BMW were in control.
The 41-year-old Raikkonen was the 2007 champion and this season became the driver with the most race starts. Next season will be his 19th in F1.
French driver Pierre Gasly's car caught fire on Friday while there was a crash between Red Bull's Max Verstappen and Lance Stroll's Racing Point car.
Formula 1: Alfa Romeo's Kimi Raikkonen undecided on future, considering retirement to spend time with family
Raikkonen, who became the sport’s most experienced driver in terms of laps and kilometres completed during the Spanish Grand Prix two weeks ago, told reporters he was considering his future
Peter Sauber interview: Sauber's architect on early beginnings, foray into F1, Kimi Raikkonen as team celebrates 50 years in motorsport
This is a year of milestones - as Formula 1 celebrates 70 years in 2020, Sauber too celebrates 50 years in Motorsport. Alfa Romeo, the flagship brand under which Sauber Motorsport currently competes in Formula 1, celebrates 110 years of existence.
Formula 1: Fernando Alonso ready to make a comeback, says his former Renault team boss Flavio Briatore
The 38-year-old Spaniard left Formula 1 at the end of 2018 but is seen as a possible replacement for Australian Daniel Ricciardo, who is moving to McLaren in 2021.
Sebastian Vettel - Ferrari to part ways: After five seasons, a promising partnership ends without much fancied World Championship
Vettel now joins an illustrious list of former world champions (Fernando Alonso and Alain Prost) who arrived at Ferrari with the expectation to win but couldn’t do so.
Four-time Formula One world champion Sebastian Vettel is set to quit Ferrari at the end of the year after contract talks broke down, German media reported late on Monday.
Formula 1 2020: Lewis Hamilton 'shocked' Australian Grand Prix is going ahead amid threat of coronavirus outbreak
Formula One champion Lewis Hamilton said on Thursday it was 'shocking' that the season-opening Australian Grand Prix could go ahead amid the threat of the coronavirus.
Formula 1 2020: Alfa Romeo's Robert Kubica emerges fastest as pre-season testing resumes in Barcelona
Reserve Alfa Romeo driver Robert Kubica was fastest as Formula One preseason testing resumed Wednesday at the Barcelona-Catalunya Circuit.
Raikkonen has started 312 races since his debut in 2001, leaving him just 11 race starts shy of breaking Rubens Barrichello’s record of 322 between 1993-2011.
Formula One teams Alfa Romeo and Haas unveiled their cars for the new season on Wednesday.
Formula 1 2019: What does tumultuous relationship between Charles Leclerc and Sebastian Vettel say about Ferrari's future plans?
For 2020, Vettel needs to pull off a miracle if he wants to retain his racing seat at Ferrari, as well as his formidable reputation in the sport. As for Leclerc, 2020 will be about consolidating his 2019 brilliance.
Formula 1 2019: Red Bull's Max Verstappen holds on to win thrilling Brazilian GP; Charles Leclerc, Sebastian Vettel crash out
Verstappen's win this season also made up for his disappointment in last year's race in Brazil when he looked certain to win before a late accident wrecked his hopes of victory
Formula 1 2019: Red Bull's Max Verstappen takes pole at Brazilian Grand Prix; Lewis Hamilton in third spot
Max Verstappen secured the second pole position of his career to mark his Red Bull boss Christian Horner's 46th birthday in style on Saturday when he topped the qualifying times for Sunday's Brazilian Grand Prix.
Formula 1 2019: Max Verstappen tells F1 not to 'be a drama queen' amidst ongoing climate change criticism
Verstappen's comments followed strong support for Hamilton from four-time champion Sebastian Vettel who, on Thursday, urged Formula One to step in and play a more positive role in the climate change crisis
Formula 1 2019: King of Spa Kimi Raikkonen returns to favourite track, wants to continue taking new challenges
Raikkonen genuinely seems to be enjoying himself at Sauber, while also bringing home strong results. He is currently eighth in the drivers championship, and has consistently scored points in eight races this season
Formula 1 2019: Kimi Raikkonen struck by spectator outside paddock; Alfa Romeo driver says fan was 'bit drunk'
Kimi Raikkonen's testing weekend took an unexpected and scary twist on Friday evening when he was struck by a spectator outside the paddock at the Belgian Grand Prix.
Formula 1 Paddock Diaries, Day 1 at Belgium Grand Prix: Reactions to 22 races in 2020, Ricciardo's jokes and Kubica's seat scare
Thursday at Spa Francorchamps was a day of announcements as the dust began to settle with regards to the 2020 grid. Here are some of the most interesting anecdotes and moments from the paddock on Day 1 at Spa.
Formula 1 2019: Lewis Hamilton's ninth-place finish in German GP under doubt as Alfa Romeo lodges appeal against penalties
Alfa Romeo on Thursday confirmed their appeal against the time penalties that denied them a double top 10 points-scoring finish at last Sunday’s German Grand Prix.