It appears legal, this guy make different models with blender, if you take a look here : https://assettocorsa.club/mods/auto/koenigsegg-one-1.html this is asseto corsa mod, there is not grid in front of the car modelized (in asseto)interior is not the same too, that's why it appears legal, if you want input this model in lfs, first you need reduce poly with decimate tools, or use this model for making your own, you have the shape etc, if the model is too close with the real car, maybe the car can't be accepted... After you need import object with lfs editor there is a complete tutorial here =>https://en.lfsmanual.net/wiki/LFS_Editor
you need configure the button accelerate to button not axe.
Tu dois configurer le bouton accelèrer sur bouton et non sur axe regarde si l'accèleration frein n'est pas mis sur comibné