Despite not enjoying the 'perfect' day, Mercedes pilot Lewis Hamilton was fairly positive following practice on Friday for the 2013 F1 Singapore Grand Prix.

Hamilton led the way in the opening session, but fell back a bit in FP2 and wound up fourth overall, 0.110 seconds off team-mate, Nico Rosberg and 1.119 seconds off Sebastian Vettel, who again set the pace.

"It wasn't the perfect Friday for us but we got on with our programme and know where we have to make improvements for tomorrow," Hamilton explained. "The balance of the car felt really good in P1 but it definitely went away from us in P2.

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"There is a lot of work to do this evening but we're used to that on a Friday night and will just get on with it and focus on our car and performance."

"It's so difficult to overtake around at this circuit that you want to qualify as high up as possible and, of course, aim for the front row but that will be tough," he added."

Rosberg meanwhile agrees that the team has work to do overnight to try and get more from the F1 W04: "It's great to be back in Singapore although the conditions are incredibly hot out there and it's a tough challenge for the drivers. We had a reasonable day but there is still some work to do this evening as our competitors seem to be very quick again," he confirmed. "We will be looking at how we used the tyres this evening and make sure we are on top of potential overheating and degradation on the long runs as there are no long straights here to cool the tyres down."

"We enjoyed a solid first day of running here in Singapore," summarised Mercedes team principal, Ross Brawn. "In the second session, we didn't quite get our first timed laps together on low fuel but that will come tomorrow, I am sure.

"Then we completed our usual running on race fuel with both types of tyre. It's hard to know exactly where we stand because there is a high lap time effect for running extra fuel at this circuit, so that can mix the field somewhat.

"The car seemed reasonably consistent today which has given us a good platform to work from tomorrow," Brawn concluded.