The real race pace will be known only on Sunday.
Manor Marussia finally made it onto the track in Malaysia as both Will Stevens and Roberto Merhi ran the revamped car for the first time in free practice at Sepang.
Sebastian Vettel believes Red Bull and Toro Rosso could join the fight behind Mercedes in this weekend's Malaysian Grand Prix.
Both silver arrows are in the top three spots on the timesheets with Ferrari's Raikkonen separating them.
Williams has been handed a €10,000 suspended fine by the FIA after the team made a mistake with tyre usage first practice for the Malaysian Grand Prix.
A sweet and sour start to the Malaysian GP weekend for Mercedes, as Lewis Hamilton’s car failure offset Nico Rosberg’s fastest time.
Fernando Alonso has spoken about the concussion injury he sustained in his Barcelona testing crash, and denied he “woke up in 1995” or “speaking Italian”.
Fernando Alonso says he has no worries of encountering another steering problem, like the one he believes caused his big Barcelona testing crash in February.