acky:
I test drove the GT S begining of the year, the engine is bombastic, but I don't like the long hood and sitting so far behind the front axle. This did't gave me the right feeling for the car in corners, also in the city I did't feel confident especially when turning left or right in smaller streets.....
Funny wise - I was driving the GT-S and I felt it was very very agile and felt extremely short . This saying, I was at that day going to AMG with my SLS, which indeed has a long hood. The GT felt very much like the 991 - just, it had this cool feeling that you are sitting on the rear axle. I think the GT has the name GT for a reason. It is the Roadster Feeling from old Brits and the muscle feeling of modern US big blocks.
I would never compare it with a Boxster. You compare a sports car which handles like a go-cart and while the performance of the GT is just another league. I guess, if you would have had the 991 to compare it would be a different judgement. If you step out of the Boxster, the Carrera feels, long, heavy and under-steering, too.