heres how you can find any question out about (is this part on X car the same on Y car)
1. go to www.hondapartsunlimited.com
2. open 2 tabs and search both vehicles parts.
3. if they are the same part number, then yes.
theres plenty of common parts that are interchangeable.
s2000 interior door handle garnish is the same as eg's
the b18 vtec oil pumps are the same as the non vtec oil pumps. the non vtec oil pumps just have a washer to reduce oil pressure.
if you do just a little bit of research, you can find the answer to many questions like these.
and yes. the coupe/hatch carpet is the same.