https://www.cnet.com/roadshow/news/hond ... ger-japan/
One former Nissan executive told the Financial Times the merger simply wouldn't make sense from a structural standpoint and said there'd be little to gain from such a move for either company. The person pointed to major differences in engineering, which would make it incredibly difficult to boost economies of scale by sharing parts.
I haven't had time to think much about the first point but I agree w/the last.
In contrast, Renault, Nissan and Renault Samsung Motors share quite a bit (well, not on Leaf), just often things that weren't necessarily visible to the customer. Long ago, https://www.renaultsamsungm.com/new/main/main.jsp
had many vehicles that clearly had Nissan engines (e.g. the VQ 3.5L V6). I haven't looked recently, but when I looked a few years ago, many of the interiors of cars resembled Renaults and not Nissans.
Long ago, when the 5th gen Maxima was the latest, the 4th gen was still being built in South Korea by Renault Samsung Motors and sold as their SM5 (https://web.archive.org/web/20120720054 ... e-to-savor