Five things we learned from day one of pre-season testingpublished at 17:24 Greenwich Mean Time 26 February

Circuits can experience power cuts
The four-hour afternoon stint was ticking along nicely when a circuit-wide power cut plunged the paddock into darkness, forcing race control to red-flag the session.
With the sun beginning to set in Bahrain, teams and drivers were faced with a lengthy delay, before the floodlights were switched on and the track was green once again.
To make sure every driver got the same amount of running, the session was extended by an extra hour.
Pre-season testing can’t escape the rain
Bahrain is usually a pleasant climate for racing, with wind more likely to affect a driver’s performance rather than rain.
But as cars headed back out on to the circuit following the red flag period, there was light drizzle that accompanied the action.
Fortunately, the smattering of rain wasn’t enough to cause any further stoppages, but the forecast for day two does carry a risk of some scattered showers.
Exciting times ahead for Hamilton and Ferrari

It’s been a year in the making, but finally the sight of Lewis Hamilton driving a Ferrari has become a reality.
The seven-time world champion, who turned 40 in January and has signed a multi-year deal with the Italian team, completed 70 laps on his opening stint in the morning.
Norris quickest on day one
Timings in pre-season testing should always be taken with a pinch of salt, especially on day one, however, McLaren's Lando Norris ended the eight hours of running top of the timesheets.
The Briton finished ahead of the Mercedes of George Russell in second, four-time world champion Max Verstappen in third, Ferrari's Charles Leclerc in fourth and new Williams driver Carlos Sainz in fifth.
Shiny new liveries catch the eye

The 2025 liveries were unveiled at the F1 75 live event at the O2 Arena last week, but Wednesday in Bahrain was the first chance to see how they looked on track.
Ferrari's deeper shade of red has been a hit with fans, while Alpine's blue and pink design and Racing Bulls striking white livery have also impressed.