FIFY. While the engine is a beast, it is and will be plagued with issues. I've replaced two complete engines already for a top end noise that couldn't be diagnosed or repaired.
I've done a few cam and lifters on them. A couple transmissions, One for an oil consumption problem, numerous electrical problems.
They suck to work on. Most of the owners are self absorbed assholes that have no clue how to even drive the vehicle.
the C8 Z06 isn't even on the road yet....