One very cool Japanese concept car that isn't in that list is the Isuzu VehiCROSS. It was built as a concept car (Isuzu VX), and then was pushed fairly quickly to production.

One of the choices they made to speed it to production was to uses ceramic body panel molds; quicker and easier to create than steel molds, but they wear out quicker. The life of the production and replacement parts was limited by the life of these molds.

The VehiCROSS, IMHO, was a pretty cool looking production car. And the concept they had for the topless version, VX-O2, was also super cool looking (aside: unlike the Nissan Murano which I loved the look of but the topless version I thought was one of the ugliest cars ever).

https://en.wikipedia.org/wiki/Isuzu_VehiCROSS