Virgin and HRT are at risk of not starting the Australian Grand Prix.
Jenson Button was fastest in second practice.
Red Bull and Ferrari were closely-matched over longer runs in first practice.
Mark Webber set the fastest time in the dying moments of the first practice session in Melbourne.
Adrian Sutil says Force India’s 2011 car is reliable but not quick enough.
One driver on the 2011 grid has been waiting more than a decade for a win.
Improving on last year’s result of seventh looks like a tall order for Force India.
Paul di Resta says the new Pirelli tyres generate an “incredible” amount of marbles which could make overtaking difficult.
Paul di Resta says he’s looking forward to racing Kubica, Hamilton, Vettel and Kobayashi again.