Valtteri Bottas topped the charts on the opening day of Abu Dhabi testing.
The car never posted an official time Tuesday, despite multiple attempts.
McLaren-Honda once again failed to complete a flying lap.
The 16-year-old managed 148 laps at Adria International Raceway.
Lotus' Pic tests concept tyre as Bianchi impresses for Ferrari in place of Raikkonen.
Unseemly nose solutions are attracting all of the obvious attention early in 2014.
The GP2 and GP3 champions showed good speed during the test.
On Wednesday, Fong was behind the wheel of the Sauber C31 while Nissany took over the car on Thursday.
The Williams driver finished six thousandths of a second ahead of Red Bull Racing’s Daniel Ricciardo.
Testing continues Thursday through Saturday.
Not the start to the second test of the year that Red Bull were hoping for.
Mercedes and Mercedes power dominate times and mileage at the Bahrain International Circuit
Marussia's Max Chilton topped the charts in the opening day of testing in Spain.
Following the first laps on track of the E22, drivers Romain Grosjean and Pastor Maldonado look to the season ahead.
Lotus F1 Renault team ended up the stars in their new 2013 car. Both Romain Grosjean and Kimi Raikkonen topped the speed charts over the four days of testing in Jerez. Jenson Button was quick on day one and Felipe Massa held the top time yesterday.
Maldonado was fastest in Barcelona Wednesday, ahead of Rosberg, who spent part of the day testing the controversial 'megaphone' exhaust.
Vodafone McLaren-Mercedes driver Jenson Button closed out day one of the first preseason test on the Jerez circuit with the fastest unofficial time.
First time that the Scuderia Ferrari works team has been on top of the timesheets on the Jerez de la Frontera circuit.
Williams F1 Team had a few issues with the car which we they will investigate and aim to solve for tomorrow and the following days.
Kevin Magnussen topped the timesheets for McLaren at the end of the first day of the F1 Young Driver Test at Silverstone. Several of the Formula One current and reserve drivers were on hand along with testing Pirelli tyres.