Overall the team was very pleased with the outcome of the day.
Maldonado was fastest in Barcelona Wednesday, ahead of Rosberg, who spent part of the day testing the controversial 'megaphone' exhaust.
Mercedes tested a 'megaphone' like component Wednesday, in hopes of amplifying the engine sound.
McLaren's cars might look a little bit different at this weekend's Spanish Grand Prix.
Bernie Ecclestone said that we have to wait and will see what happens.
Nico Rosberg and Lewis Hamilton finished the Spanish Grand Prix in sixth and 12th places today.
Alonso pushes from start to finish to win his home Grand Prix
Pastor Maldonado finished 14th with Valtteri Bottas 16th in today’s Spanish Grand Prix.
The tyre degradation was a key factor and so the Red Bull's drivers finished 4th and 5th in today's race
Dissapointing race for Ricciardo, but still points for a team.