PRACTICE DEBRIEF: Why Ferrari and Mercedes can take positives as they look to close in on Red Bull in Japan

Light but persistent rain coated Suzukas high-speed figure-of-eight circuit on Friday afternoon, preventing Formula 1 teams from gathering long run data for Sundays Japanese Grand Prix and limiting the learnings from a slew of upgrades introduced this weekend. From what we did see, Red Bull lived up to their favourites tag, but they do not appear to have the commanding advantage they enjoyed last year.