Comparison of the values of the central stellar velocity dispersion and maximum circular velocity, obtained through different dynamical model parametrizations. Top: correlation between the central stellar velocity dispersion values σ₀, obtained from the dPIE-J and dPIE-H dynamical models. Bottom: correlation between the maximum circular velocity $v_{\mathrm{circ}}^{\max }$, estimated from the NFW-J and dPIE-J dynamical models. The values and errors are obtained as the median and 16th and 84th percentiles of the posterior probability distributions, inferred through an MCMC analysis. The red line in each plot shows the one-to-one relation.