McLaren chief Zak Brown sent a concerning message when he admitted during pre-season testing: "We set some goals for development, which we didn't hit."
All 10 teams are in the thick of their preparation work ahead of the new season, which kicks off with the Bahrain Grand Prix next weekend. It remains far too early to draw any concrete conclusions about where each teams stands, but there are some early concerns for McLaren.
Their running on Thursday was limited a little by some teething problems on the MCL60. And then, when Lando Norris and Oscar Piastri were able to take it out for a spin, the lap times they were setting were not exactly inspiring much confidence.