Granted they were pre-specc'd cars, but here's my first impressions:
Had a drive in an R56 S yesterday, with the 6 spd, as well as a Cooper automatic.
Got to agree with most, if not all, of what Owen said in his S review. Power is smooth, ride is good. Love the sport button--just have to remember to turn it on when I'm ready to go thrash the car. The dynamics of the "old" car are all there. The rush of power delivery in the S will be seriously addictive. Brakes are really, really good.
Some interior bits are cheesy cheap--especially the plate between the remains of the down pillars. That should be trimmed out with the body color or the interior trim chosen. Switches are chunkier, but not as satisfying from a tactile basis--they look cool but don't "snap" into action.
Love the new seats--supportive & grippy. They look especially good in the Tuscan Beige. The Lounge leather is amazing, can't wait to see it in another color (i.e. not red). The slight raising of the belt line puts the window sill in exactly the right spot for perfect elbow resting--for my 6' 5" height, anyway. . Don't like the decrease in door storage. Haven't seen the "extra" dash storage yet--US doesn't get it until March or later. Don't like the fact that the interior door latches are smaller.
Cooper Auto, after having driving the CVT on a number of occasions, is a revelation. It just gets up & scoots--like it should have from day one.
US doesn't get aerokits of any sort, LSD, and a whole bunch of other stuff until next month at the earliest.
Not liking the enclosed battery storage, unless someone can point out the easy way to replace the battery when needed. HVAC / Radio controls aren't as intuitive as earlier, but I didn't mess with them much.
Overall, 9.2 out of 10.