Sergio Pérez set the fastest time on the first day of the second Bahrain test with his Force India completing 105 laps, with a best of 1m35.290s. This was rather slower than the best time recorded last week. Teams seemed to be once again focussed on reliability testing and Valtteri Bottas was second quickest in the Williams-Mercedes, completed a mammoth 128 laps with a best of 1m36.184s, ahead of Kimi Raikkonen, who did 54 laps in his Ferrari with a best of 1m36.432s. Nico Rosberg was next up with 89 laps in his Mercedes with a best of 1m36.624s, the team stopping earlier than planned but not explaining why. Next was Sauber’s Adrian Sutil (1m37.700s after 89 laps) and McLaren’s Kevin Magnussen (1m37.825s after 109 laps). Red Bull Racing was again in trouble with Dan Ricciardo doing just 39 laps with a best of 1m37.908s before he was stopped by exhaust problems, while Max Chilton gave the Marussia team some solid running with 44 laps and a best of 1m38.242s, a time that was matched by Daniil Kvyat in his Toro Rosso, which did 55 laps before “a technical failure”. Pastor Maldonado completed 31 laps in the Lotus, with a best of 1m40.599s before being sidelined with exhaust troubles, while Kamui Kobayashi did 19 laps with a best of 1m42.285s. It is worth noting that Pirelli was testing a new type of sticker on each tyre tread in Bahrain. These read the maximum temperature reached by the tyre tread while the tyres are being pre-heated by the teams in their tyre blankets.