List of things Panamera owners are annoyed with in their cars
Fuel gauge location - its hard to see it.
Valet key location - Actual key to the car (metal piece) is hidden in the fob...
2014 Porsche Panamera Review
V6 engine
2014 Porsche Panamera S E-Hybrid Review
There is also an article from one of the Panamera owners about first impressions in the car
2015 Panamera S e-hybrid first imperssion