Some speed trap data for you there.
Lots of you talking about Verstappen - his team-mate Sainz is up to fourth.
Scratch that, he's up to third! He's jumped above Verstappen some time in the last few minutes.
Sainz's lap time is a 1:31.014, Verstappen's a 1:31.067.
Bottas has a wide moment through Turn 1. That corner must be so fun to take full beans. If you keep it on the black stuff, of course...
Bottas' last lap, by the way, put him into third with a 1:30.748. Seeing another replay it looks like he had a little lock up into Turn 1 and he was basically drifting through the corner.
@EmilePainchaud: I think he can if Ferrari has a half decent package. Regardless of how dominant it is, Merc will falter at some point.
@Bruce: That's a big if, Bruce.
@philippe: Don't forget Toro Rosso is full of ambition this year. They're aiming for fifth in the constructors' championship which would be its best ever result.
Bottas is 1.191s down on Rosberg. That's an almighty gap, even if this is just FP1. Doesn't bode well for Sunday.
Renault's latest tweets on the driveability issue I was talking about, for anyone not sure exactly what it means.
One thing I noticed standing trackside in Spain was how long it took the Renault powered cars to get onto the throttle after a turn. Mercedes was so much quicker than the rest it was quite remarkable.
Max's younger sister, Victoria, is also an interesting prospect for the future. Only 14 but by all accounts is pretty fast in karting.
@altaf: Nope. Just because a team is in the pits doesn't mean there is an issue - this is practice after all.
18 minutes left in this session.
@RalphValence: Hello Ralph. Magnussen's car currently has a swarm of Honda mechanics around it, which doesn't suggest things are all OK. But there's been no official update from the team.
@DD: Mediocre? He won three races last season.
@Capoa: Kaltenborn has left the circuit, by all accounts.
@RB: Earlier they were third and fourth and a few commenters thought they were going to win the next 50 races.