I believe a few have tried it, there is a kit for a flush mount style for the mr2 that isn't direct fit, or if you would want to keep the pop ups (which I would want to), possibly retrofitting a kit for an NA miata. I've yet to see any real pictures though
Well, they should fit. They look like H6054 housings (which are the stock ones), but as for those, I've heard some iffy things about them. Before I'd buy those, honestly I would probably get some standard style housings that can utilize h4 housings and use good bulbs.