Comparison of SALT2 and SiFTO parameters for a selected sub-sample of SNe of Table 11. Linear transformations of Eq. (6) and Table 6 were applied to SALT2 parameters. Each dot is a SN, the light grey areas represent the rms of the distribution in redshift bins, and the dark areas the uncertainty on the average values. The red curve on the top panel for the rest-frame B band peak magnitude is the expected discrepancy due to the differences of the SALT2 and SiFTO spectral sequences.