Lewis Hamilton dominated both of Friday's practice sessions ahead of the season-opening Australian Grand Prix.
1 Lewis Hamilton (Gbr) Mercedes GP 1min 23.620secs
2 Sebastian Vettel (Ger) Ferrari 1:24.167
3 Valtteri Bottas (Fin) Mercedes GP 1:24.176
Scroll down for full practice times
Lewis Hamilton hailed the perfect start to his new Formula One season after he completed a dominant practice double and laid down an ominous marker to his rivals ahead of the Australian Grand Prix.
Hamilton and Sebastian Vettel exchanged verbal volleys in Melbourne on Thursday as they failed to agree on which driver-team combination should be considered the favourites heading into a new era following changes to the sport's technical regulations.
The consensus in the paddock was that Ferrari, led by four-time champion Vettel and starved of championship glory for a decade, held the advantage following a promising eight days of pre-season testing in Barcelona.
However, Hamilton's blistering pace here round Albert Park would appear to point to the contrary.
Indeed Britain's triple world champion, who is bidding to reclaim the crown he lost to bitter rival Nico Rosberg last year, finished both sessions an eye-watering half-a-second clear of his rivals.
Hamilton's best effort of one minute 23.620 seconds was 0.547 faster than Vettel in the second session, with Valtteri Bottas, the Finnish driver hired to replace Rosberg following his shock retirement, marginally slower.
Kimi Raikkonen was fourth fastest, with the Red Bull duo of Daniel Ricciardo and Max Verstappen fifth and sixth.
"It is a wonderful feeling coming into a new era of Formula One to have a car that is so strong and I'm super happy to be back, particularly after a first day like that," beamed Hamilton. "It was 99 per cent perfect.
"After struggling with some issues in Barcelona we didn't know if we'd have the same thing here. What's really encouraging is that we've arrived at the track just a week later and the car is exactly where it should be.
"We were optimistic and hopeful that we would be at front, but the car felt night and day as to how it did in the final days of testing so that was a relief to all of us.
"Ferrari are still right there with us and Red Bull have picked up a lot of pace. We have got to stay on our toes, but I think we are making the right steps in the right direction."
While there is only so much that can be gauged from practice, with drivers operating varying fuel levels, the theory that this year's wider, faster, and more aggressive looking cars would suddenly shake up the order and bring a dramatic halt to Mercedes' dominance is now under significant scrutiny.
Hamilton's Mercedes team have won 51 of the last 59 races and sealed three consecutive drivers' and constructors' championships following an unprecedented reign of success.
And the 32-year-old Hamilton will be delighted with his opening salvo of the year as he bids to become the first British driver in Formula One history to win four titles. Ferrari will have hoped to be closer.
Elsewhere, McLaren arrived in Australia off the back of a catastrophic winter of testing plagued by a slow and unreliable Honda engine.
However, the British team will be mildly encouraged after the opening day of practice, with Fernando Alonso 12th in the order. His new team-mate, Stoffel Vandoorne, was further back in 17th.
This year's faster cars are a greater physical proposition for the drivers and Briton Jolyon Palmer was the day's biggest casualty after he spun his Renault and crashed into the wall at the final corner.
Palmer, now in his second season with Renault, damaged his pride and his car, with his team facing a major repair job to get his car ready for qualifying on Saturday.
1 Lewis Hamilton (Gbr) Mercedes GP 1min 23.620secs
2 Sebastian Vettel (Ger) Ferrari 1:24.167
3 Valtteri Bottas (Fin) Mercedes GP 1:24.176
4 Kimi Raikkonen (Fin) Ferrari 1:24.525
5 Daniel Ricciardo (Aus) Red Bull 1:24.650
6 Max Verstappen (Ned) Red Bull 1:25.013
7 Carlos Sainz (Spa) Scuderia Toro Rosso 1:25.084
8 Romain Grosjean (Fra) Haas F1 1:25.436
9 Nico Hulkenberg (Ger) Renault 1:25.478
10 Daniil Kvyat (Rus) Scuderia Toro Rosso 1:25.493
11 Sergio Perez (Mex) Force India 1:25.591
12 Fernando Alonso (Spa) McLaren 1:26.000
13 Esteban Ocon (Fra) Force India 1:26.145
14 Felipe Massa (Bra) Williams 1:26.331
15 Marcus Ericsson (Swe) Sauber-Ferrari 1:26.498
16 Lance Stroll (Can) Williams 1:26.525
17 Stoffel Vandoorne (Bel) McLaren 1:26.608
18 Pascal Wehrlein (Ger) Sauber-Ferrari 1:26.919
19 Kevin Magnussen (Den) Haas F1 1:27.279
20 Jolyon Palmer (Gbr) Renault 1:27.549
1 Lewis Hamilton (Gbr) Mercedes GP 1min 24.220secs
2 Valtteri Bottas (Fin) Mercedes GP 1:24.803
3 Daniel Ricciardo (Aus) Red Bull 1:24.886
4 Max Verstappen (Ned) Red Bull 1:25.246
5 Kimi Raikkonen (Fin) Ferrari 1:25.372
6 Sebastian Vettel (Ger) Ferrari 1:25.464
7 Felipe Massa (Bra) Williams 1:26.142
8 Romain Grosjean (Fra) Haas F1 1:26.168
9 Nico Hulkenberg (Ger) Renault 1:26.183
10 Sergio Perez (Mex) Force India 1:26.276
11 Carlos Sainz (Spa) Scuderia Toro Rosso 1:26.450
12 Daniil Kvyat (Rus) Scuderia Toro Rosso 1:26.514
13 Lance Stroll (Can) Williams 1:26.734
14 Fernando Alonso (Spa) McLaren 1:27.116
15 Marcus Ericsson (Swe) Sauber-Ferrari 1:27.348
16 Esteban Ocon (Fra) Force India 1:27.656
17 Kevin Magnussen (Den) Haas F1 1:27.667
18 Pascal Wehrlein (Ger) Sauber-Ferrari 1:28.539
19 Jolyon Palmer (Gbr) Renault 1:28.585
20 Stoffel Vandoorne (Bel) McLaren 1:28.695