In these pictures, all cars converted from Richard Burns Rally.
(Most of the cars was converted from RBR to rFactor1, and convert into AC to.)
I don't know that the Felicia will be public or not, but it SHOULD BE free, because it is a conversion from RBR.....
The Octavia WRC is a scratch made model, and a very very nice model, sadly private...
Nowadays a lot of good modelled rally cars released for free in Discord Channels.
(If I remember well I saw Micra kit-car but I think that will be private.)
There is a model called micra kitcar, but that is a Micra Andros Trophy car..... And converted from Rallysport Challenge 1 to a lot of games like rFactor1, GTR2, Assetto, GTA:SA-4-5(?), maybe for BeamNG, and everywhere called kitcar, but that is NOT a kitcar.
For the AC-RC2000 projekt you have almost all cars (triburon, Civic, felicia) in RBR, and in other games (example Loeb Rally: 97 Saxo kitcar).
The main problem is the Micra, and the Proton Satria. But maybe that car is in GTA, and mybe somebody can convert it to AC.