The two drivers look set to tussle for the title.
Mercedes looks like the team to beat again.
The British driver was fastest by half a second in Melbourne.
The season gets underway Friday in Melbourne.
Ferrari was fastest in preseason testing.
Hamilton came runner-up to Nico Rosberg in 2016.
Verstappen finished fifth in the driver stands last year.
Liberty Media completed its F1 takeover in January.
The new Formula One season begins on March 26.
Sebastian Vettel set the fastest time of testing so far Thursday.
Bottas has to prove he can replace Nico Rosberg.
The Sky Sports pundits sat down with Newsweek ahead of the new season on March 26.
Mercedes looks to be the team to beat again.
Hamilton says tweaks to aerodynamics lead to more "dirty air."
Hamilton is seeking his fourth world title.
The sport's sharing of prize money is one area MEPs could investigate.
Lavish Dubai is becoming increasingly obsessed with supercars.