- Red Bull team boss Christian Horner says Liberty Media "absolutely underestimated what they were taking on" after purchasing Formula 1 in January 2017. This comes after criticism from the F1 Promoters Association (FOPA), and continuing concerns about the tweaked technical regulations for 2019 (The Guardian)

- Horner was more positive about the progress of Red Bull's new engine partner for 2019, Honda, over the winter, believing their stability with the regulations and power unit concept will bode well for this year (RACER)

- Rich Energy boss William Storey feels Haas has a "great chance" of beating Red Bull on-track in F1 this year. Rich Energy has become a title sponsor for the Haas team (The Sun)

- FOPA's statement criticising Liberty "went a bit wrong," according to Azerbaijan Grand Prix chief Arif Rahimov: "This was never meant to be a press release, it was more a way of us directing our concerns to Formula 1 about what can be improved in one voice." (ESPN)

- Mercedes has announced a new global partnership with cybersecurity specialist CrowdStrike (Mercedes)

- James Harvest Sportswear has become a supplier to Williams ahead of the new season (Williams)

Five Storylines to look out for in F1 2019