I was an anti auto person until I got the GTS. With so much power and torque it really makes for very relaxed driving. Well, at least until you suddenly realise all that power and torque has put you over the limit!! I tend to use mine for longer journeys, and it is really good for that, a true grand touring motor car.
I bought the car near Manchester and drove it back to Aberdeen, the weather was very bad, heavy rain most of the way, not really what you want in an unfamiliar high power car. However I have to admit that it was one of the most relaxing long distance drives I have ever done. I was not going fast but the time and miles seemed to pass very quickly. As a matter of interest the flight down in the BM pocket rocket cost me £125 and fuel back cost me £75 and probably caused much less pollution, so don't fly, use your 928! I am off to the le Mans Classic in July which will give me a good opportunity for some more grand touring.
In this car and being used for its true function, I would say auto box every time. They are just about bomb proof and will probably outlast the rest of the car.