BARCELONA, Spain -- Less than 48 hours after the chequered flag fell at the Spanish Grand Prix, Formula One's ten teams have returned to the Circuit de Catalunya for two days of in-season testing this week.
Although in-season testing is a low-key affair, the two days could have a significant impact on the championship. Ferrari suffered its most significant defeat of the opening five races on Sunday, finishing fourth and fifth as title rivals Mercedes romped to fifth consecutive one-two victory.
After emerging from pre-season testing as the team to beat at the Circuit de Catalunya, Ferrari was 0.