Putting in my 991 C4S order today so back on the forum and saw your comments!
At least in theory PDK is more economical because it can step down far quicker and more efficiently than someone driving manual can. I stay above 3000 RPM, and often closer to 4,000 RPM with my manual 997 C4S so that if needed the car is instantly responsive, but 90% of the time it isn't needed.
With PDK, it will put me in a higher gear/lower RPM and if I do need torque it will instantly shift down a lot more quickly and precisely than I typically could. That was my point. and no dishonor to be saving gas. Most of us tooling around in late model 911's aren't too concerned about the dollars and cents of it, but we do share a planet.
And re the rear wiper, living in northern NJ and depending on the year, there can be a lot of snow and I'm fully in agreement with those suggesting there is no downside to a wiper clearing it from the rear window before backing up. (I like to limit my time manually cleaning the rear window come the dead of winter.)
Especially when Porsche seems to be at odds with the new US Government requirement to offer rear view video in all their cars - I thought - as of this summer. Not as another $5,000 option - for something that comes standard in a $20,000 Toyota.
I can't wait for VW to fully take over. Nor my dealer who's sales manager was vociferously bemoaning, just today, all the indignities of dealing with current Porsche management.
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997 C4S FL