It wasn't matte black. Does this look matte black to you?
You know what matte means right?
Oh, and to answer you're question... Yes I do.
Looks more satin to me.
In general the sheen scale is:
Flat - Matte - Satin - SemiGloss - Gloss and so on.
There's some light reflection from the Batmobile paint but not much. A lot of painters do use the term satin and matte as the same though.