Daniel Ricciardo remained upbeat with tweaks made to his Renault power unit despite another day of troubled running.
Lewis Hamilton had a somewhat disappointing day in Malaysia during Friday practice, with telemetry problems and engine niggles curtailing his running.
Williams believes it has lost the pace edge over Mercedes it had enjoyed for more than a year as it approaches the Malaysian Grand Prix weekend.
Sergio Perez is staying optimistic in his fifth year in Formula One despite Force India’s shaky start to its 2015 campaign.
Fernando Alonso’s return to the Formula One paddock has only created more questions than answers as uncertainty continues to swirl his pre-season testing accident.