those would work in the front cab for pass/driver, good ideal,, but not sure if I would want to use black,, the cheap mats from Walmart are brown,,,,, in the bathroom I used the foam/rubber then the black mat cut to size, over it,,, worked great ,, as mentioned I used the rubber/foam mat for the storage compartment, remember it's about 1/3inch thick , in hall same rubber/foam but have a rug runner over it,,, it's really nice and comfy... nice to stand walk on... the foam/rubber is very cheap per yard $6,,, easy to cut.... another good point to using it, you over measure a tad and can press it in to the sides it's very snug where it meets the walls,,,,,,,,, how ever probably would not stand up to walking on,, that's why I put a rug cover on it...
http://bathrooomproject.blogspot.com/ the one in the bathroom fits exactly.. your right regarding those black mats easy to cut I take the foam/rubber mats out when were at home easy to clean with soap and water,,
sparky