Lewis Hamilton started the new Formula 1 season using fastest time from the first exercise session at the Grand Prix.

The world winner had emphasised on Thursday that he believed Mercedes were behind heading into this season.

However, at a closely matched session, Hamilton edged ’s Sebastian Vettel by 0.038 seconds. His teammate was 0.036secs behind.

Just 0.193secs covered the major four, with ’s Max Verstappen up.

British-born Thai Alexander Albon, a rookie forcing for , brought the session to a brief halt having a wreck at spin Two.

The episode knocked off front but Albon surely could drive the vehicle back into the pits.

The other new drivers, Britain’s Lando Norris and George Russell, started attentively on the street track, which can be notorious for its own dirt and lumps and at which it’s easy to lose the vehicle and damage it.

Norris stopped the session 18th, four regions and 0.6secs away team mate Carlos Sainz. Russell was last and 0.8secs off his teammate Robert Kubica.

were, as expected, adrift of this trunk of this field – Kubica was two minutes away from the next slowest car, which was Norris.

Part of this margin was tyres – only ran the moderate tyre while many the others put their days on the quickest soft – however that still leaves the a lot higher than a second off the back of grid.

At front, Hamilton’s performance undermined Mercedes’ asserts that these were behind .

The world champions led how throughout the session, Bottas starting with the quickest period when running the moderate tyre, before Hamilton shining ahead by 0.267secs to the soft.

Bottas ran wide at the penultimate corner and narrowly avoided clouting the walls while trying to improve his period.

Sixth quickest was Alfa Romeo’s , ahead of a remarkable performance from the coming Daniil Kvyat in seventh place from the about the moderate tyre.

The next driver was next quickest, ahead of ’s Nico Hulkenberg, that missed the first half of this session having a technical issue.

His teammate Daniel has been baulked by driver Romain Grosjean on his quickest lap and so the Australian’s 17th quickest time wasn’t representative.