I've driven an '05 6 speed coupe, and let me tell you, you can loose an awfull lot of cars with the V6 6 speed manual set up. Now, I've heard for 2006 that even though the hp rating is up only 4, which is due to the revised SAE horsepower ratings, the '06 feels substantially quicker than the '05 (which most people would probably say it didn't really need to be any faster). The Dec. issue of Car and Driver has an '06 automatic V6 sedan clocked in at 6.4 seconds 0-60, so one would surmise that with a stickshift and the lighter weight of a coupe that the car could come close to sub-6 seconds 0-60.
I will probably drive one in the near future myself, as I intend on buying one in the spring.