Rosberg wins again in wild Chinese GP

For his third win of a so far dominant campaign, Rosberg finished 37.7 seconds ahead of Ferrari's Sebastian Vettel, with Daniil Kvyat on the podium in his Red Bull for the second time in his F1 career.

As for Hamilton, from the back of the grid after a MGU-H failure during the first qualifying session and subsequent power unit change overnight, the reigning champion could do no better than seventh.

But that's only half the story of what was a chaotic race.

Red Bull's Daniel Ricciardo took the lead into Turn 1 after beating polesitter Rosberg off the line from his own front-row position.

Behind the lead duo, Kimi Raikkonen locked up marginally at the first corner, forcing Ferrari team-mate Vettel to make a slightly evasive move.

But with Kvyat charging up the inside, Vettel manoeuvred his way back into his team-mate, sending the Finn off the track and into the pits for repairs.

Vettel fumed over the radio, describing Kvyat as "a madman" who had made a "suicidal" move and arguing with him after the race.

Hamilton had made up five places into Turn 1, but after running over a piece of Raikkonen's wing, the Briton was then hit by Felipe Nasr and ended up with his own front wing lodged under his Mercedes.

That caused damage to the bib and leading edge of the floor, resulting in a loss of downforce and hampering Hamilton's recovery.

Leader Ricciardo's hopes were blown on lap three when, powering down the back straight and with Rosberg in tow, he sustained a puncture to his left-rear tyre caused by debris on the track.

Shredded rubber on that part of the circuit prompted a safety car, and brought Raikkonen and Hamilton back into contention at the rear of the pack.

During the five laps the safety car was on track, Hamilton made two stops for tyres, taking on super-softs for one lap, and then back to another set of softs, the compound on which he had started, giving him free choice of rubber for the rest of the race.

Once the safety car was released, behind leader Rosberg a number of key players were out of position, with Vettel 15th, Ricciardo 17th, Raikkonen 19th and Hamilton 21st.

What followed was a stroll for Rosberg, while those behind attempted to work out the best strategy and tyres for any given part of the race, with positions changing constantly from second downwards.

Kvyat ran second to Rosberg for most of the race, with Vettel using a brief hard-charging stint on super-softs to make progress through the traffic and catch him again.

They swapped places immediately after the final stops, where Ferrari put Vettel on softs and he was able to quickly pounce on the medium-shod Red Bull.

At one stage prior to his fourth stop after 21 laps Hamilton was running third as others pitted, but two further stops followed - for a total of five - dropping him down the order on both occasions.

He came back through to push Felipe Massa's Williams for fourth, but was eventually passed by a flying Ricciardo and Raikkonen.

Ricciardo ultimately claimed fourth for the third successive race, with Raikkonen fifth, followed by Massa, Hamilton, Toro Rosso pair Max Verstappen and Carlos Sainz Jr, with Valtteri Bottas completing the top 10.

Despite the numerous incidents, all 22 cars completed the race, with Jolyon Palmer for Renault the last of those to see the chequered flag.