Mercedes' George Russell is the pre-season favourite - but it does not look good for Fernando Alonson and Aston Martin

The final pre-season test confirmed there will be a new Formula 1 when the new season starts in Australia in two weeks' time.

New in the sense of who is at the front - and new in terms of many aspects of the sport and how it works.

So what did the last three days of running in Bahrain, before the teams decamp to Albert Park in Melbourne, say about the reshaped sport - and who are the winners and losers within that?

Ferrari's Charles Leclerc ended the test with the single fastest lap time in an emphatic way - 0.811 seconds quicker than the next best time, set by Mercedes' Kimi Antonelli.