I have been researching mazdas (CX-5) lately and they do get updates to the info/nav system. I think I read there is a crashing problem in v.51 or something, but its fixed in v.55. Not the same as tesla, but better than others.
This forum: http://mazda3revolution.com/forums/2014-mazda-3-skyactiv-aud... has some excellent info, and someone usually posts the new FW files. I've done an upgrade and the hacks myself.