What I am going to say is not going to be in the sense of realism in the strict sense, but I think that for this kind of cars, it would be nice to have the possibility to increase in the showroom the engine power and torque (fictionnal).
This allows to appreciate much more the car, to create more interesting driving situations and even to drift in AWD !
This is what I did by editing the upgrade. ini, and I apply between 200 and 300% of the torque / power of the car, depending on the track.
Most people do not know how to do it themselves, I think it would be good by default on this kind of mods, for a raw pleasure.