Datsun Register Link

Now I have placed one of my cars on the register, but I still have some reservations.
How about you tell us why it's such a good idea.

My 1970 [KB10] Datsun Sunny Coupe GL is in the Sunny list which will be populated with B310 Sunny models.
The family groups need to be identified by chassis code, not model names.
[EDIT] Problem now fixed, see my next post.