Example of a snapshot of the AGB model that fits the observations of R Car well. The observation of R Car is the same as shown in Fig. 1, i.e., 14 January 2023, and it is fitted with snapshot 122 for θ = 14.87 mas. Upper panel : calibrated flux of R Car and the flux of the AGB model. Lower panel: squared visibility amplitude |V|² of R Car. Six baselines are shown in the same color and compared with the synthetic |V|² of the AGB model for the same baselines.