Nico Rosberg sets fastest time in F1 testing near Williams . Mercedes driver laps Albert Park in one minute 22.792 seconds . It was also over a second better than his nearest rival on the day , Massa 's teammate Valtteri Bottas of Finland . Over one minute 22.792 seconds quicker than the next best by Manor Marussia in Barcelona . Manor Marussia set to return to grid in 2015 .
Nico Rosberg sets fastest time in F1 testing near Williams . Mercedes driver laps Albert Park in one minute 22.792 seconds . Over one minute 22.792 seconds quicker than the next best by Manor Marussia in Barcelona . Manor Marussia set to return to grid in 2015 .