well according to all the text that accompanies the pics (above and on the site I got them from) say it's a Cube.....
http://www.pro-s-futaba.co.jp/hsphoto/prs-3.htm

if yo translate the page it says "It is the NISSAN cube of ジェネティック."

and obviously the ad says "Xanadu Cube"

Xanadu is a famous Cube tuning company in japan and they changed the grill and then ABC copied the tuned version... happens all the time.. Yokomo's drft cars for example are all based on "tuned" versions of the real cars

http://www.web-xanadu.com/