Because it was made for beamng when it did not have PBR. And waboll is reworking the mod, making a new model, and updating it, making it much more detailed.
Well, at least it's RHD and has similar enough specs to what the real life counterpart UK one would have
In all honesty, I'm pretty pleased this mod is being reworked. Anything RHD is good enough for me and I'm always happy to see a V8
Well it isn't a Omega. It is the Roth Alpha so it could use the same interior design than the LHD counterpart.
For AUS, the Opel Omega was the basis for the Third Generation Holden Commodore (VT-VX-VY-VZ). You can modify the body to look like that model.
the AUS version will have the same body as the EU but different front and rear end, the interior will stay the same unfortunately its too much work (will be rhd obv) same goes for US- different front and rear end but the interior will most likely be the same, although i could make some slight changes, i have few ideas for it