the c5's interior is like every other interior in every car chevy made at that time. Sitting in my c5 felt basically the same as sitting in my 03 trailblazer. It's cheap plastic and large panel gaps, but completely functional.
I guess when you're buying a (when account for inflation) $90,000 car, you expect a luxurious interior. But chevy had to cut costs somewhere, and that meant a basic bitch interior.
Realistically, the 911 from the same era sucked just as much ass