my experiences in a vette are still limited to a C4... which turns predictably; but the go was seriously lacking-better seat bolstering then a C5; and a standard C6; i havent yet sit in a C6 Z.
my experience in a FGT was it goes insane... simply insane;and has plenty of stopping power. i want it sooo bad. i only drove it on Woodward, so no chance to test its lateral grip....
one GT owner drove his white/blue stripe GT up to Michigan from Florida, with no complaints, citing quiet cabin noise for any car... id compare it to a BMW at highway speeds, decent economy (he said he had 21mpg) and compfort.
so, not all GT's are pampered