We rented a convertible Crossfire last year in Vegas for the drive to the Grand Canyon and Back.
(It was auto with the 'manu' stick - you know + - side to side action).
For the long drive to the canyon and back, I found this car very comfortable. Acceleration to pass from highway speeds was very responsive.
One thing I noticed, is that this car does not turn heads, or 'get noticed'. Although I felt quite special driving around in a beautiful white 2 seater, top down etc, I really got the impression I was the only one who felt special.