Deletion of X-Seed 4000

Comment: If it is an '''existing''' design, whether it will be ever built or not is not important. If you want this article deleted, you should do the same for Boeing Sonic Cruiser, just to name an example of '''existing''' designs which have not being realized yet (or never to be made). The relevant policy , correctly applied would not let us accept someone's general idea for a new building
Stance: keep
Cited policy: Wikipedia:What Wikipedia is not (WP:NOT)