Nissan recently filed this new logo with the World Intellectual Property Organization that's made up of 5 lines. It seems to pay tribute to the automakers racing background where 23 was often used and it even translates to 'Nissan' in Japanese:
2 = "ni"
3 = "san"
The shape of the lines are also exactly like the lines in the new Z's grille:
branddb.wipo.int
2 = "ni"
3 = "san"
The shape of the lines are also exactly like the lines in the new Z's grille: