Ted Kravitz assesses whether there might be a problem with the Ferrari engine as he brings you the latest from Barcelona
F1 is back in Barcelona - and so is Ted Kravitz for another edition of the Notebook to bring you the latest from testing.
Mercedes and Ferrari impress in different ways while Force India and Manor move up. But as for McLaren-Honda...
Sky Sports F1's Ted Kravitz reviews the first pre-season test at Barcelona and assesses the current state of play.
Mercedes and Ferrari may be further ahead but has the gap between them closed? Meanwhile, McLaren struggles continue...
Sky F1's Ted Kravitz wraps up the first pre-season test in Barcelona with a special edition of Development Corner.
The numbers - best times, lap counts and miles completed - at the halfway stage of 2016 pre-season Formula 1 testing.
Hopes for a McLaren breakthrough this winter appear to have been dashed after the team completed just 250 laps in the first test.
Kimi Raikkonen returned Ferrari to the head of the order as the first Barcelona test ended - but McLaren's week ended badly.
Mercedes have trialled a new nose featuring an S-duct on the final day of the first pre-season test in Barcelona.
Sky F1's Ted Kravitz reports on Day Three of pre-season testing and explains the sport's plans to revamp qualifying.
Nico Hulkenberg marked his first day of 2016 action with an impressive display as Force India finished quickest on Day Three in Barcelona.
Eric Boullier says lap times are currently not McLaren's focus at the Barcelona tests as they look to confirm MP4-31 expectations.
Lewis Hamilton arrived in the Barcelona paddock on Thursday on a hoverboard while also taking his pet dog Coco for a walk!
Sky F1's Ted Kravitz tours the Barcelona paddock and catches up with some familiar faces as F1 testing continues in Spain.
Fernando Alonso has again insisted he will see out his McLaren contract and expressed "surprise" at fresh sabbatical talk.
Nico Rosberg was delighted to see Mercedes bring "real innovation" to the floor of the W07 on the second day in Barcelona.
Ferrari have continued their eye-catching start to winter testing as Sebastian Vettel topped the timesheet again at Barcelona.
Jenson Button says Honda have made massive improvements to the deployment of electrical energy over the winter.