First off let me say I love this car!! I have waited patiently (for the most part) to own a Corvette. I test drove a c5 version a couple of years ago and quite frankly it turned me off Corvettes. I just started looking again and saw the '05 at a great price and couldn't resist. I test drove it and fell in love. To me this is what driving a corvette is all about! It has power, style, and comfort. I am a tall guy (6'4") so sports cars aren't exactly built with me in mind. I have take this on modest rides so far (2-3 hours) and I have no problems with comfort. To sum it all up, if you are thinking of buying a vette, buy the c6!
Traction control, nav system, HUD, overall ride of vehicle
Blue tooth capability, improve radio (I was a bit disappointed with the sound system)