Nico topped the times in both practice sessions with Lewis finishing second in each. The morning session saw Nico confined to the garage during early running with an engine problem, recovering to take top spot. In the afternoon session, a tyre failure for Nico then ruled him out of the final third of running. The team will work with Pirelli to determine the cause of this failure this evening. Both cars ran the prime (medium) tyre in P1, the prime and option (soft) compound in P2.

Nico Rosberg: It's good to be back on track after the summer break. The circuit is fantastic and our car seems to be quick again. It felt great out there and I was happy with my pace. In the second session it was quite a shocking moment for me when my rear tyre failed. When you are going as fast as 300 km/h and something goes wrong, that´s a horrible feeling. I thought I would end up in the wall and, to be honest, it was pure luck that I didn't. We now need to investigate with Pirelli what happened.

Lewis Hamilton: Today was generally a good day - no problems with my car, great weather and a lot of fun out on track. It's not often it stays dry here and that makes it even more enjoyable with the way the track flows through great corners like Eau Rouge. It was great to be back out there. The car felt good and it felt very natural to be straight back to business which is a positive sign. Nico is very quick so I have some work to do tonight to see where I can find some time. Ferrari and Red Bull also look closer here than they have at past weekends, so it'll be a close run thing and we'll need to be up for the fight. What happened towards the end of P2 with Nico obviously wasn't good but luckily he's unhurt and of course the team will be looking into it with Pirelli. I have no concerns, though. You have to have trust in the car and in the tyres to go out there and push, so it's not something you think about.

Paddy Lowe, Executive Director (Technical): Today started reasonably well, with P1 running more or less to plan save a small engine problem for Nico which the team turned around very quickly. We tested a few different items before moving on to a standard P2 programme of prime and option runs. This ran smoothly until the long run on options, when a tyre failure for Nico brought out the red flags in the final third of the session. With one car ruled out of running, we decided not to continue the regular programme with Lewis until we had understood the problem. We'll be working hard with Pirelli this evening to understand what happened and how we can ensure that we're operating safely for the rest of the weekend. Overall, though, both drivers were happy with the balance of the car. It's a tough lap to get right, as the ideal downforce levels required vary at different sectors around the track, so our pace was encouraging. We will be keeping a close eye on our competitors as always, though. Ferrari and Red Bull in particular look strong this weekend, so we'll need to have good outright pace and the ability to defend at the end of the long straights to come out on top.

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