After a successful pre-season test programme with new team Ferrari, Sebastian Vettel arrived in Australia in an extremely positive frame of mind.
However, the quadruple world champion is under no illusions that the Italian team are likely to be playing catch-up to Mercedes in Melbourne
Drivers - Max Verstappen (Toro Rosso), Kevin Magnussen (McLaren), Valtteri Bottas (Williams), Sebastian Vettel (Ferrari), Lewis Hamilton (Mercedes), Daniel Ricciardo (Red Bull Racing)
Everyone has been dealt a new hand of cards for 2015, but all of Mercedes' rivals arrive in Melbourne for the season opener convinced that the Silver Arrows will still be holding all the aces.
Winter testing indicated that the new F1 W06 Hybrid has the speed to carry on where the W05 left off last year, but of course no one will really know if that's true until Saturday's qualifying session
Amongst the drivers who will take part in the official FIA press conference in Melbourne on Thursday will be home favourite Daniel Ricciardo, reigning world champion Lewis Hamilton and new Ferrari driver Sebastian Vettel.
The line-ups in full
Sauber's driver line-up for this weekend's season-opening round in Melbourne is in doubt after an Australian court ruled that the team's 2014 reserve driver Giedo van der Garde has a valid contract to race for them this year
Gene Haas's fledgling Formula One team say they are on target to be on the grid for the start of next season, following the recent procurement of a European factory and some key staff hirings.
To augment Haas's United States home in Kannapolis, North Carolina, the team have bought Marussia's former UK base in Banbury
Roberto Merhi will make his F1 race debut this weekend in Australia after being confirmed as Marussia's second driver for the 'opening rounds' of the 2015 season.
Merhi has previous experience in Formula One racing, having driven for Caterham in three FP1 sessions during the 2014 season. Still only 23-years-old, he has enjoyed success in a number of disciplines
Vijay Mallya admits Force India are starting the 2015 season on the back foot following their disrupted pre-season.
Various delays meant the team were only able to complete two and a half days of running in their 2015 car, the VJM08 - and while it proved reliable from the outset, team principal Mallya says there is no hiding the fact Force India are playing catch up with their rivals
Testing is complete and the wait is almost over. Next weekend the new Formula One season finally kicks off in Melbourne with the 2015 Formula 1 Rolex Australian Grand Prix. Those involved look ahead to the eagerly-anticipated Albert Park event
Mercedes AMG have unveiled the two new models that will serve as Formula One racing's official safety and medical cars for the 2015 season
If it was the cars that attracted all the attention this time last year, this time it's most definitely the drivers, with wholesale change across the grid.
Though he will miss the opening round, Fernando Alonso's return to McLaren, and Sebastian Vettel's move from Red Bull to Ferrari, provide two of the most intriguing storylines ahead of what promises to be another fascinating season of racing
McLaren and Honda endured a fragmented pre-season test programme, with mechanical issues meaning they spent more time in the garage than they did on track.
However, the newly-reunited partners are determined to get on top of their early problems, and once they do their unique power unit layout could pay dividends. We take an exclusive look under the skin of the MP4-30
Marussia are set to return to the Formula One racing grid for the 2015 season-opener after confirming their car will be ready in time for Australia.
The team say they will begin the season with an interim machine, built to comply fully with 2015 regulations, before introducing a new car later in the campaign, based on designs initiated last year
Formula One racing's official tyre suppliers Pirelli have confirmed the tyre compounds that will be available for the first four Grands Prix of the 2015 season
Toro Rosso say there is no doubt that rookies Max Verstappen and Carlos Sainz Junior are ready to make their Formula One racing debuts in the season-opener in Australia.
At 17 and 20 years-old respectively, the duo will be the youngest driver pairing in F1 history when they compete in Melbourne - but team principal Franz Tost believes they have already proved they can handle the occasion
Fernando Alonso will miss the season-opening Grand Prix in Australia following his testing crash in Barcelona, McLaren confirmed on Tuesday.
Although the team say Alonso is entirely healthy from neurological and cardiac perspectives, doctors have advised the Spaniard, who sustained a concussion on February 22, not to compete in the race. Kevin Magnussen will take Alonso's place
Susie Wolff will take part in two Grand Prix sessions in 2015, after Williams confirmed her participation in FP1 at both Spain and Great Britain.
Wolff will also drive on the opening day of the post-race tests in Spain and Austria, as well as completing an "extensive programme of work" in the Williams simulator
Ferrari enter the 2015 FIA Formula One World Championship having met all of their pre-season testing goals, according to team principal Maurizio Arrivabene
Formula One racing's governing body the FIA has published new helmet livery rules intended to make the drivers more recognisable while they are out on track
Having used a unique black and white 'camouflage' livery throughout testing, Red Bull have revealed the colour scheme that will adorn their RB11 car during the 2015 season proper.
As expected, the Milton Keynes-based squad has retained its traditional dark blue livery, with purple highlights on the sidepods