A good portion of the teams have already announced the presentation dates of their cars, and of the larger teams, Red Bull is the only one missing.
Namely, the Italian branch of the site Motorsport
reports that the reason for the unpublished date of the presentation is that the new RB18 did not “survive” the frontal crash test on the last test. That reportedly delayed the team’s plans, but engineers and chief designer Adrian Newey reportedly weren’t too worried.
In addition to Red Bull, Haas, Alfa Romeo and Williams have not yet announced the presentation date of their cars.