Sauber will officially unveil their 2019 challenger on the morning of the first pre-season test, February 18.
Last season, their first with Alfa Romeo on board, Sauber opted for an online launch a week before testing.
This year, though, the team is going low key, unveiling their 2019 car on the opening morning of testing.
— Sauber F1 Team (@SauberF1Team) January 21, 2019
Pre-season testing gets underway at the Circuit de Catalunya in Barcelona on February 18 at 9am.
February 12 Renault
February 13 Racing Point
February 14 McLaren
February 15 Ferrari
February 18 Sauber