Here it is!
finaly I managed to find the correct name and additional information (most in Japanese
about this very intersting car. It is named Mooncraft Koshiden* (presented in 2006) and was designed by Japanese designer Takuya Yura.
* I say Koshiden because most webpages has it as Koshiden, but the end of the automobile is marked with the name
Coshiden...
I also add some pictures to enjoy!