Rosberg stays ahead as more rain hits Sao Paolo

F1 Grand Prix, GP Brazil, Autódromo José Carlos Pace, Interlagos

Nico Rosberg was again the fastest man at Autodromo Carlos Pace in Brazil, proving once again that the Mercedes is working well on intermediate tyres. Sebastian Vettel was second fastest, ahead of team mate Mark Webber.

Because of more rain since FP1, the track was seriously wet at the start of FP2, requiring full wets to do a decent lap, contrary to the intermediates that were in use earlier today.

Max Chilton was the first to do a lap but he returned to the pits before setting a time. Heikki Kovalainen was the next to go out, completing two timed laps 20 minutes into the session before reporting heavier rain and return to the pits.

The situation remained somewhat the same with a very wet track, seeing only about 10 cars out for a short time to set a few times. Neither team however is willing to sacrifice the full wet tyres as the same ones will have to be used later in the weekend if the conditions remain the same.

15 minutes from the end, Fernando Alonso is the first to go out on intermediates and is son followed by a large number of cars. The intermediates can be used at will, as those will be replaced before going into Saturday running, hence there's basically nothing to lose.

6 minutes from the end, Webber returns to the pits to reduce his front wing angle after doing a few laps struggling with oversteer and without KERS. His teammate Sebatian Vettel at the same time set the fastest time thus far, and Hamilton, featuring a Brazilian-special helmet spun in turn 5 but could easily return to the track.

At the very end, Rosberg again went faster, staying ahead of thereby topping both Friday sessions here in Brazil.