Any Kind of Poly Limit?

Ive got a model ive been working on for some time now and recently ive decided to put it into some type of game environment with the ultimate goal of creating a virtual space people can walk around in using the new VR equipment coming out.

I know theres a dedicated VR forum but this is more about the game engine itself because the model i would like to use is several million polys, about 5.5 million. I do plan on reducing the poly count as much as possible without sacrificing quality but the final poly count will probably still be 3-4 million polys.

This model would be the only object in the entire scene so that should help hopefully.

Would a model of that complexity crash the Unity system?

I had a car with 4 million polygons in a scene and it needed a very beefy machine to get smooth frame-rates.
Unity can handle that much geometry but it is very hardware intensive.
Unity will split the mesh into 65000 vertices sized meshes.
Why not download unity and test import your model?

I havent learned how to do that yet haha. I just found out about unity yesterday and posted this before even getting home from work to download it.

I just wanted to make sure i wasnt wasting my time if the system couldnt handle it in the first place so thats good to know.

So far tho my mind is pretty blown with this whole thing. Cant wait to learn all the things it can do.