After the conclusion of practice sessions one and two, Mercedes driver Nico Rosberg expressed his satisfaction with the new parts the team received.
Testing out their new upgrade package at the Circuit de Barcelona-Catalunya, Rosberg trailed the two Ferrari's in the first practice session but managed to recover in the second session, topping the lap times with a 1:23.922.
He also added that he is looking forward to the qualifiers on Saturday but will be keeping a keen eye on Ferrari.
"It was a good start for us today with two good practice sessions," the Championship leader said.
"Times were looking good on the longer and also on the shorter stints.
"I feel very comfortable with the car with some new parts added and they seemed to have worked well.
"Ferrari also look very strong around this circuit so I'm looking forward to Saturday's third practice session as well as qualifying and to seeing how we can perform out there."