DM halo spin distribution for the NIHAO sample (gray curve, Jiang et al. 2019), together with the MW predictions for the NFW and contracted NFW mass models (faint and solid red points). The green stars mark the spins of the MW-type galaxies in NIHAO, among which galaxy g8.26e11 is the closest analog, both in terms of stellar and DM mass, as well as in terms of stellar disk structure (Obreja et al. 2018; Buck et al. 2020). Most of the uncertainty in λ_MW comes from the uncertainties in the mass models of Cautun et al. (2020). The ordinates of the red and green points have no physical meaning.