Hi
This is a topic dedicated to adding new vehicle slots and its components.
I managed to add a new vehicle slot in TDU, unlike Megapack 2 project this doesn't use an idle slot but is in fact a new entry in the TDU database. :)
This effectively means that replacing cars for mods is a thing of the past.
Here's a few initial notes:
Its possible
Doesn't crash the game when playing online, other players will see the default vehicle
If you change the database(clean re-installation for example) and open a save file that has a brand new car not written in the database, it'll also show up as default car, when the database does have an entry that matches it the car will show up.
Here's a testing photo: a Plymouth Barracuda, its a brand new slot made by copying over the Challenger entry and editing a few values so its recognised as a new vehicle.
New slot is the last one
Car in-game, as you can see everything works fine.
Will write up a bit more on this later. :)