I am wondering why it looks so high though, no room for where the seat belts should go in
Once the seats are in it will look more proportional and I think there is plenty of room for the belts.
The real Reventon looks a little "fat" or tall in the back like this IMO.
The newer cars, Aventador and Sesto Elemento for example by design are better at hiding this but there does have to be room for people to sit.
I'll betcha I have watched this vid 20 times now....