ΔE 14.2, fair: the same colour family, but not a straight swap. Ferrari Red is a little darker, more saturated, cooler than Rust Orange.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Ferrari Red is a little darker, more saturated, cooler than Rust Orange.
The same difference applies the other way round: Rust Orange is a little lighter, more muted, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Rust Orange on the colour wheel See Ferrari Red on the colour wheel
All matches: Rust Orange equivalents · Ferrari Red equivalents