Cougar Mercury Villager Wagon 1977

This is one of the models, that I dumped for a long time, but now decided to finish it. It's one of the early ones so the mesh is horrible and the model doesn't even have a muffler and wipers and I too lazy to add them now haha. This car actually exists, well at least it did, but I don't know who's the owner Also, can anyone tell me, how opacity/refraction works on this site? It just doesn't work properly. There should've been snow on the windows, but it became transparent too, even with opacity texture.