"I was told by the team to stop the auto", Raikkonen said". I was feeling good.
City of Miami commissioner Ken Russell posted a potential track layout on Twitter last week, with most of the course in the port area and featuring a loop around the downtown American Airlines Arena along Biscayne Bay.
While the Mercedes and Red Bull's were in fine form, the Ferraris of Sebastian Vettel and Kimi Raikkonen were unable to get anywhere near the top three as Raikkonen suffered what is a rare power issue in his auto.
The press conference was hastily brought to an end by the Head of Communications for F1's governing body, the FIA, with Hamilton and Vettel continuing to express their angst as they walked away.
Elsewhere, aerodynamic rule changes are expected to make F1 cars 11/2 seconds slower per lap next year, the sport's governing body, the International Automobile Federation (FIA) said on Thursday. "It caught me out this morning".
"It's incredible what the technology we have and what we're doing with it, [next year] we should be at least as fast as we are this year [while] just making the racing better". "Unfortunately, mine was costly enough to miss the last hour of that session".
Bottas was a tenth of a second faster in the morning session than Hamilton's afternoon time at the 4.6-kilometer (2.8-mile) track outside Barcelona.
Hamilton arrived in Barcelona non-plussed by the four-point championship lead he inherited courtesy of the chaos inherent in racing around the streets of the Azerbaijan capital, Baku.
There was some disquiet with the rear-view mirrors Ferrari mounted on the halos, with motorsport governing body FIA looking into a possible breach of regulations.
It was an experiment that was approved of by Vettel who denied the team had been motivated by any possible aerodynamic gains. "We'll see tomorrow how much we've improved compared to the others".
"I know Miami quite well, so there are a few better locations (in which) to put the track".
Williams saw Robert Kubica on duty for his first of three FP1 sessions that he'll be enjoying this year, the Pole temporarily replacing Sergey Sirotkin. He suffered severe injuries in a rallying crash.
The former race victor was 19th, in 1:21.510, and faster than teenage Canadian team mate Lance Stroll in last place on the timesheets with a best of 1:22.756 after his vehicle went off into the gravel.
Mercedes was fastest in all three practices in Barcelona, with Hamilton and Bottas leading the timesheets.
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