Charles Leclerc claimed top spot during FP1 at the Singapore Grand Prix, as Max Verstappen complained over setup issues with his RB19 during a chaotic hour at the Marina Bay Street Circuit.
Leclerc was joined by Carlos Sainz at the top of the timing sheets, with the Spaniard just 0.078s behind his Ferrari team-mate's lap time of 1:33:350s.
Despite a lot of the build up to this weekend focusing on the Marina Bay Street Circuit not suiting the Ferraris, that certainly did not seem the case during FP1.
Sainz and Leclerc flew to the top of the timesheets and stayed there as qualifying sims started and the soft red tyres went on.
Although not entirely indicative of Sunday's race, there will certainly be encouraging signs for Fred Vasseur to ponder ahead of the running in FP2 later on Friday.
Norris set an early pace at the beginning of the session as he looked to lay down a marker for the weekend. The McLaren arrived at Singapore with further upgrades and its pace was clear to see from the very start.
Oscar Piastri, who will have to wait until the Japanese Grand Prix next time out to enjoy the full range of Norris' upgrades, ended the session in 19th.
McLaren CEO, Zak Brown, revealed his pleasure with the early performance of the MCL60, stating that Norris had provided positive feedback with the changes made to his car this weekend.
Verstappen's Red Bull complaints
Verstappen was not pleased with several issues with his RB19 in the early part of FP1, as he complained over the 'aggressive downshifts' and 'oversteer in every corner'.
And it didn't take long before the Dutchman returned to team radio to bemoan his 'low speed' and a lack of traction.
Perez meanwhile had a rather different complaint, asking for his seat height to be raised to help him see the apex of the corners more clearly.
F1 livery changes
Fans were treated to a rare glimpse of the Marina Bay track in the daytime, with the first practice session taking place prior to sunset in Singapore.
Although qualifying and the race itself will take place under the lights on Saturday and Sunday respectively, both FP1 and FP3 take place earlier in the day.
This showcased both Williams' 'Gulf' livery – on display for the next three races – and McLaren's 'Stealth Mode' livery – in use for both the Singapore and Japan Grands Prix.
A strange reunion
And despite the majority of attention being on both the racing and the new designs on display, a rather curious incident led to a yellow flag being waved after the halfway stage of the session.
Despite no immediate reason for the flag becoming apparent, it was soon revealed that a lizard had made its way onto the track.
Fans will remember Verstappen's comical reaction to seeing a reptile at the Marina Bay Street Circuit in 2016, and the Dutchman didn't miss his chance to reminisce as he avoided making contact with the animal.
"Ah. There's a lizard again on the track," he said. "A smaller one this time."
And remarkably two more lizards also found their way onto the circuit later in the session prompting further yellow flags.
The two-time world champion will no doubt be hoping to avoid any further distractions over the weekend as he goes in search of his maiden race win in Singapore.
Here are the timesheets from Friday's practice action at Marina Bay.
Singapore Grand Prix FP1 practice results - Friday September 15