I don't know yet how/what I'll do exactly, there are so many things to add to the site and so little time for working on it

I like the idea very much too! I was thinking at Fiat’s rebadges (Polski Fiat, Zastava etc.) or cases like Iveco, OM, Unic, Magirus etc. or yet the Chinese joint ventures as suggested by Walter.

Very good idea! I like this.

Could this be done for the Chevrolet Vectra, Opel Vectra and Vauxhall Vectra? Among other brand variations?

It is planned: I have to improve how makes are managed/stored, and that would allow to have some make info related to them, and at the same time I was planning to include such kind of links to related makes.

New feature suggestion: Related vehicle makes

I was wondering if it would be possible to merge the related car brands but leaving them listed separately as they are at the same time - e.g. when I click on 'Audi' I'd like to make all the related brands (FAW-Audi for instance, but also tuning brands like ABT or MTM) appear on its main page: https://www.imcdb.org/vehicles_make-Audi.html

I'm thinking about all the European/Japanese makes sold in China with a slightly different name (all the FAW lots such as Volkswagen/Mazda/Toyota/Mercedes, BMW Brilliance, but also the Spanish Land Rover Santana...) Agreed on keeping them listed as separate makes but it would be a shame for the user not to consider them while browsing the website by choosing the favourite car brand.

There are some bigger changes, like support of Unicode titles and car makes/models (for non-latin characters), and several more technical (not really visible).
Probably some others I forget, that could be found in the Site update thread.
Around 2017-2022 there were probably not many changes, it is only recently that I restarted to take time for improving the site, one little step at a time

To be honest Terra antp has made some great changes within the last year already:

New feature to upload HD images for non-admins.
Origin flag to titles.
Clear bot filter (for admins).
Last edited (for admins to combat rogue editing without comments).

Sure there are more but that is a lotof changes thus far considering where the site was when I joined back in 2015?

Loud and clear

The list is long, some day I'll post it with priorities
The danger is giving hope for things that may take year before being there

What are the other features? I'm curious.