Mazda is only working with Toyota on electric because they have to for compliance reasons in CAFE states. The CEO has quite recently panned EVs and said they will die when subsidies go away[1]. I'm sure they will produce a compliance-only vehicle available only in California and probably only for lease, like Honda has done with the clarity.

[1] http://www.greencarreports.com/news/1111876_mazda-exec-engin...