F1's testing war: The team in pole position to race clear under new rules, angry Max Verstappen's 'steroids' barb and why it could be 'chaos' in Melbourne - as insiders tell me what's really going on in the paddock

It's paradise for brainboxes in Bahrain. And smokescreens and mirrors along the pit lane, in keeping with the oldest of F1 traditions as the sport's biggest overhaul enters the last day of testing.