Rear plate says NC-Y.

That's because they're not the same car.

Here's the back of the NC-Z: s5.postimg.org/8v1d5mzpz/Daihatsu_NC_Z_Concept_008_850x543.jpg

And the front of the NC-Y: www.inautonews.com/wp-content/uploads/2013/09/daihatsu-nc-y.jpg

The biggest giveaway to tell they're two completely different cars is the shape of the side window.

Here's a side-by-side image with both cars: 1.bp.blogspot.com/-S5psM4JxlaI/UkEalt6n3YI/AAAAAAAAGg8/D6GrxUs58mo/s400/Daihatsu+NC-Y+NC-Z+Concept.png

You can upload it if you can find it without watermark.

I can distinguish them because the NC-Y looks like the Skoda Citigo especially because the Citigo has a very similar green color (only darker).