Fernando Alonso insisted he was saying thanks to the mechanics.
Mercedes paced the first and second days of April testing in Bahrain, with Lewis Hamilton getting to spend some time in the No. 1 spot on day two.
Felipe Nasr got the chance to drive a Williams in the second day of testing in Bahrain.
Red Bull's Daniel Ricciardo completed 67 laps on the second day of testing in Bahrain after electrical issues plagued the RB10 in the morning.
Jean-Eric Vergne done 64 laps with a best time of 1:35.557.
Nico Rosberg and Mercedes topped the charts in the opening day of testing in Bahrain.