Don't miss another Winter Testing edition of Ted's Notebook as the Sky F1 pundit rounds up all the latest news from Day Three.
Mercedes and Ferrari impressed while there were more struggles for McLaren and Lance Stroll in Barcelona, and Ted explains the ins and outs of what we have seen so far in F1 2017.
What's more, there are interviews with most of the paddock, including McLaren chief Eric Boullier, while Daniel Ricciardo takes on the neck collar challenge.
Click play on the video above to watch the whole episode.
The Sky Sports F1 Digital team will be providing live commentary from dawn until dusk for all days of winter testing while Sky Sports News HQ will also deliver live updates from trackside.