The only major missing Group B four-wheel-drive car, the Citroen BX 4TC -
I would really love this car in DR2.0. I've tried to ask multiple times by email, via Twitter, and in a live chat during a car reveal if the BX 4TC is even a possibility, as well as the methods involved in how cars are chosen and licenced for use in the game, but no luck getting a response just yet. If someone could point me at who I should ask and how I should contact them, I'd hugely appreciate it.
As to the car itself - I firmly believe it would be an excellent, high-skill-ceiling addition to the game and Group B 4WD. The car did not have a central differential and so was unstable on dirt and even worse on tarmac, and the hydropneumatic suspension, while near-overworked by the rough surfaces and aggressive driving style needed to alleviate drivetrain wind-up, would bring some interesting dynamics to faster rallying. At present only the Citroen DS 21 has this type of suspension in-game. To keep up with other Group B 4WD cars would be a real and IMO highly enjoyable challenge in the BX 4TC.
The game already has multiple Citroens present; L'Equipe and Total-sponsored cars displaying these company's logos are also already in-game. This ties into my interest and unfortunate lack of response so far into the methods that the developers use to pick cars and licence them and their liveries for the game - once again I'd hugely appreciate it if someone knows where and / or who I should ask about this (not just so I can pester them about the BX 4TC, I do have an interest generally in how the process works, I promise)
Anyway, as my favourite Group B 4WD car (despite being objectively a bit rubbish), I would give anything to finally see this car in an actual videogame.