Nico Rosberg signed a new two-year contract with Mercedes on Thursday (21st July), which will keep him at the Formula One team until 2018.

SOUNDBITE: (English) Nico Rosberg and Toto Wolff:

Wolff: "So who starts? You start."

Rosberg: "I start? You start?

Wolff: "No, you start."

Rosberg: "I start?"

Wolff: "Yes, you start."

Rosberg: "No, you start. Come on, you. Come on, let's stop this. We've had enough negotiating now. Come on, you just start."

Wolff: "Okay, I start. No, we are very happy, obviously. (We) Had a couple of weeks of discussions. It was always clear we wanted to continue. Nico is the real deal for us and having made the signature is what matters. So, great, onwards and upwards."

Rosberg: "Yeah, special moment for me of course, this moment of signing that piece of paper, and I look forward to the future. Of course, very thankful to you (Wolff), to Niki (Lauda - Mercedes non-executive chairman) and to Dieter (Zetsche - head of Mercedes-Benz) especially, but of course to all others, for the support and just really looking forward to the future."