Any chance you could post a pic of light grey with your grey interior? I get what your saying but I think the dark grey will be too much contrast for me.We have the Lloyds RubberTite mats in 2 of our 3 100 series. We love the mats.
1) They start off with a strong "pool toy" smell that goes away fairly quickly.
2) We went with the lighter Ivory/Lt Grey. If I were to do it again, I'd go with the next darker Tan/Grey, because the lighter colors tend to show dirt.