BARCELONA, Spain -- Valtteri Bottas put Mercedes at the top of the timesheets on the second morning of testing at the Circuit de Catalunya on Wednesday.
The Mercedes race driver set the fastest time since Saturday's qualifying session for the Spanish Grand Prix, clocking a 1:16.904 on the super-soft compound tyre. The lap was 0.7s slower than the time Bottas set to secure second on Sunday's grid but was 0.068s faster than the next quickest driver on Wednesday morning, Antonio Giovinazzi in the Ferrari.
Giovinazzi, who drove for Sauber on Tuesday and is Ferrari's third driver, used the hyper-soft tyre to set a 1:16.