I had C6 427 Collector Corvette (essentially a Z06 convertible). One of my nags was the amount of heat generated in the cabin by the exhaust running through the driveshaft tunnel. Literally enough to keep coffee warm in the console-based cup holders. Not that that's a bad thing when you want coffee, but not pleasant if you like spirited summer driving, and more prominent if caught in traffic. I wondered if this was a GM oversight, or if the previous owner had removed heat shields for some reason. I was considering lining the tunnel, but ended up selling before that project started.
I assume this is not an issue with the C8. 😎