Never thought that I would be at this point in my Porsche experience, but while dragging my heels during the 2,000 mile, limited-rev break-in period, I have discovered my Cayman inner hypermiler. Why not have fun while the elephant is still in the room? The A*S*S* feature (auto-stop-start) has been bags of fun, especially the coasting feature when the bleeding PDK is in free-wheeling mode (hide the children, Porsche has re-discovered SAAB two-stroke technology). I still break out in laughter when the 2.7 goes silent at a red light, or when the revs drop to idle speed going downhill. (Don't tell me to turn the A*S*S* off - this is too much fun.) I have learned how to tickle the tail of the dragon - while free-wheeling downhill, if you jab the brake pedal repeatedly at just-brief-enough intervals to control the gravity-enhanced acceleration, it will still remain free-wheeling; but if you brake too long, it will drop back into gear. Similarly, when I hit the glass-ceiling 4,000 rpm limit while accelerating, if I "breathe" the gas pedal (just like with the sainted SMG on my E46 M3) at the self-imposed rev limit, the PDK will upshift without my even touching the paddle. I just love to dork the software. Haven't done the definitive calc (not enough data at 1,100 miles), but I think that I am running at about 30 mpg overall, much of it in-town. Of course, once I hit 2,000 miles, it will be carbon-footprint be damned. But for now, this is a fun parallel universe to inhabit.