The right car will sing to you
It wont matter what other people say or think .. you like it, you drive it.
I just drove the Z06 this evening... I can say it's going to be a tough decision. Both cars sang to me!
The Corvette feels monstrously more powerful than the Porsche. I didn't even floor it and the torque just grabbed at me. The interior isn't great, but I wouldn't say it's horrible either. The Porsche definitely felt more refined with its steering and ride quality. I'm 6'2" like you Grayeagle, but both cars were equally spacious.
It's really going to be a difficult decision... dangit!