@AbhishekChoudhury: I think it's widely accepted that JEV is a more talented driver than Gutierrez and Ferrari isn't into taking an inferior driver for a few Mexican pesos.
@N1: We have had some wet conditions this pre-season and I think I'm right in saying all the cars have taken advantage of them at one stage (with the possible exception of the McLaren and this year's Force India). But it probably won't stop the teams complaining about the wet tyres when we get a deluge or two at the first two races...
@Marais: In terms of technology WEC is well ahead of F1. The freedom for development means WEC gets much more exciting technologies and variation. Take the ERS system for example, Porsche has lithium-ion batteries, Audi a flywheel system and Toyota a supercapacitor battery
@AbhishekChoudhury: I think Hulkenberg deserves a chance at a top team but Red Bull has its own system, Ferrari has always gone for big experienced names, McLaren promoted Magnussen and then took Alonso and Mercedes has Rosberg and Hamilton. Had he arrived in the sport a few years earlier I think he would have been in a better team. Just bad timing and some very talented opposition.
Can anybody guess who the guy on the right is in Sauber's latest tweet?
@LachuChelsea: Is the correct answer!
@MelhemSake: I wouldn't hold your breath on Sunday either. It's likely we won't know until Australia.
Nasr, Vettel, Maldonado and Button are all on track at the moment, no change to the order since our last update.
@mfbull: Group interviews are held with all drivers although not each day. That was a one-on-one for an exclusive interview Nate had planed with Ericsson.
@AbhishekChoudhury: I'd say Bottas is next in line at Mercedes due to his links with Wolff.
@MrTuK: Polite is one way of putting it... The cars have to pass the FIA crash tests but can run illegal wings, bodywork, engines or pretty much anything else. However, the advantages of running illegal concepts is pretty limited as they will only have to come off the car in Melbourne.
@JayMcKenzie: All the cars bar Vettel and Rosberg are on track, Kvyat has just returned too
And now Hulkenberg. We briefly had a very busy track.
It is now officially McLaren's most productive test day of the year. Button now has 61 laps, the previous record for the MP4-30 was held by Alonso and set last Friday.