ΔE 9.5, close: similar, with a visible difference side by side. Ironclad Grey is more muted than Rubber & Tires.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Ironclad Grey is more muted than Rubber & Tires.
The same difference applies the other way round: Rubber & Tires is 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.
See Rubber & Tires on the colour wheel See Ironclad Grey on the colour wheel
All matches: Rubber & Tires equivalents · Ironclad Grey equivalents