Top Formula 1 teams must be Sauber's 'trigger' going into 2019 - Autosport

Sauber is judging itself against Formula 1's biggest teams having improved more than any other across the 2018 season, says team boss Frederic Vasseur

Read more: Top Formula 1 teams must be Sauber's 'trigger' going into 2019 - Autosport