Laps: 1096 (5101km)
Fastest time: 01:19.310 (Super-soft, Day 6)
An overwhelming sense of déjà vu swept through the Barcelona paddock during the opening week of testing. Over the course of the first four days, Mercedes not only completed 90 laps more than any other team but also set the fastest lap time of the week. Any hope there may have been among rivals that the world champions would trip and stumble as a result of Formula One's new regulations was quickly dashed.
The new W08 emerged on the first day looking every bit the world championship contender.