Hello and welcome to live coverage of the Spanish Grand Prix. First practice is 30 minutes away, stay tuned for minute-by-minute updates.
We have a 90-minute session ahead of us under a cloudless sky. Perfect conditions for F1 cars and we should see an interesting session with most teams bringing several updates to the cars.
As always, feel free to send in your questions and comments and we'll do our best to answer them.
@Steven: I've only seen a few sneaky photos in the garage, so I'll wait for the cars to hit the track before looking too closely at who's done what. Apparently parts were arriving this morning in the paddock, so the cars could change between FP1 and FP2
Mercedes did say ahead of the race that its focus is on a constant stream of updates rather than a particularly big package for this race.
@Splunge: Max Verstappen and the two Red Bulls have all used three Renault internal combustion engines, putting them on their last ones. Verstappen is also on his last MGU-H. The two McLaren drivers are on their last turbochargers and their last MGU-H.
@RCC: None whatsoever. Some cloud cover is possible on race day, but it should be dry for each session.
@Heman: There is an updated engine with on reliability and driveability improvements. That doesn't necessarily mean tokens have been spent.
@chir: Both Ferrari drivers took a new ICE for Bahrain, which looked to me like a strategic choice for a power-based circuit.
One big update in the pit lane this morning is a new nose on the Red Bull. It's the long-awaited shorter nose that the team was struggling to get through its crash tests. It's currently only on Kvyat's car, presumably to run a back-to-back with the old nose on Ricciardo's car. This is the nose the car was designed for and therefore should see a big performance gain.
@rockedin123: People in the paddock need something to talk about...
@MichaelBialocur: I wasn't aware of that stat, but track conditions could explain part of it. Bahrain is very much a power circuit, so perhaps the aero gains didn't shine through as much. This is a better track for comparing the cars.
Track temp is 20C and air temp 20C at the moment. Both should rise for the afternoon session.
We should point out that Susie Wolff is in the Bottas Williams this morning and Jolyon Palmer is in the Grosjean Lotus. Raffaele Marciello is in the Ericsson Sauber.
@Questionaire: Sounds like it to me. Niki Lauda said after Bahrain that Rosberg should stop looking for excuses and focus on beating Hamilton. I tend to agree.
@MichaelBialocur: Discussions are ongoing. There are some pressures from Pirelli and the engine manufacturers to hurry up a decision as both need to plan ahead. The tyre contract is set to come up for renewal soon and Pirelli is reluctant to commit without details. However, the powers that be are rarely rushed into decisions.
@Martijn: We will bring you a pic as soon as our agencies snap and upload one.
Hamilton has set the early pace with a 1:28.993. Verstappen goes second with a 1:29.898.
A McLaren lines up for a practice start at the end of the pit lane and belches out a plume of smoke. It then stutters away and out on track.
Marciello loses the rear of the Sauber in dramatic fashion coming out of Turn 9. That was very close to a big accident.
Raikkonen also struggling for grip as he runs wide in the final sector of the lap.
Perez is off at Turn 4 and in the gravel. He keeps the car rolling forwards and returns to the track.