They technically are matte but even out of the box they have a bit more gloss to them than the typical matte finish. I put some Adam's quick sealant on them and it makes them even more glossy as seen. I tried wheel wax, regular wax and stuff like that and it did nothing to them really. The quick sealant however makes them much closer to a gloss black. If you wash them with a typical wheel cleaner though it strips the quick sealant and they go back to matte and need the sealant reapplied.
I keep looking at other wheels but I can't find any I can honestly say I like the look of better than these on a white R in term of style, size and weight (forgetting price). I've been contemplating having them refinished in 100% gloss black but I'm not sure if I want to invest $ into them or keep looking for another set of wheels I like better, which don't seem to exist.