A stock NSX has a solid cover in between the engine and the glass. Lots of boosted NSXs and the NSX-R replicas remove the solid cover and put either a mesh cover or no cover at all.
This is an NSX with no cover at all.
I'm not sure if a real race prepared NSX would have that snorkel connected to the air intake (which normally connects to the scoop behind the drivers door), but there is a lot of engine in not much room, so who knows.