They don't have to have every single model. Just the prolific ones. Who gives a damn about several different versions of a friggin' Civic? Especially two different versions of the SAME Civic wagon? Come on, man. Geeeeeez.^^^^You do know that this collection belongs to Honda of America, right? It'd also be impossible to have every type of car that they've created so they probably left those out. I ran into the same scenario when I visited the Toyota museum. There were a couple of notable examples missing but our host explained why that was the case at the time.
Okay, okay. Let's do this: The beginning of the Prelude (already shown) and the pinnacle (missing entirely from the collection):
...and now, the pinnacle Acura coupe: The 2002 Acura CL 3.2 Type S: