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A great send off for a true champion. It was a very special night as Nico Rosberg picked up the drivers' championship trophy in the knowledge it was a once in a lifetime event. The more he talked about it, the more it made sense -- the right decision, made at the right time for the right reasons.

Laurence Edmondson, F1 Editor

WATCH: Rosberg's retirement announcement.

F1 World Champion announced his immediate retirement from the sport on his social media channels.

1:04

The moment just before the surprise announcement. There were gasps in the room as the reigning world champion, Nico Rosberg, announced his F1 career would end here in Vienna.

Laurence Edmondson, F1 Editor

Rosberg: I'd have stayed on if I hadn't won.

Nico Rosberg reveals that he would not have made the decision to retire from Formula 1 if he hadn't won the 2016 Drivers' Championship.

1:03

Gow: A brave decision from Rosberg.

Jennie Gow says that Nico Rosberg has taken a very brave decision in retiring from Formula 1 so soon after his title win.

1:42

Wolff still in two minds over Hamilton.

The executive director of Mercedes Toto Wolff explains he is still torn as to whether he believes Lewis Hamilton's tactics at the Abu Dhabi GP was right or wrong.

0:31

Should Hamilton be punished?

Lewis Hamilton's decision to push Nico Rosberg back and practically into the hands of Sebastian Vettel is under the spotlight.

1:47

Hulkenberg to lead Renault to success?

Can Nico Hulkenberg strike up a good partnership with Jolyon Palmer at Renault as he prepares to make the switch from Force India for 2017.

2:27

Another Mercedes showdown in 2017?

Will Lewis Hamilton take back his world title from Nico Rosberg in 2017? Here's what Marc Priestley and Nicki Shields think.

1:58

Have Haas exceeded expectations?

Marc Priestley explains why he believes Haas' early form has been misleading in theri maiden year as a Formula One team.

2:04

Do Red Bull have the best drivers?

Nicki Shields and Marc Priestley discuss whether the impact of Max Verstappen has helped get the best out of Daniel Ricciardo.

1:34

Priestley: Fear factor crippling Ferrari.

Marc Priestley talked to Nicki Shields about what Ferrari need to do to regain their position in Formula One.

2:15

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