Carnage Red vs Ferrari Red

How close are they?

ΔE 15.2, loose: different enough that you should pick on purpose. Ferrari Red is a little darker, much more muted than Carnage Red.

Can I use Ferrari Red instead of Carnage Red?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Ferrari Red is a little darker, much more muted than Carnage Red.

Can I use Carnage Red instead of Ferrari Red?

The same difference applies the other way round: Carnage Red is a little lighter, much more saturated.

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.