For my reference, the car weighed in at 1330kg yesterday with half a tank of fuel, myself and gear in it.
Also perhaps Reijo can comment (if he's on WSC) on how the car felt when he rode with me once at an event yesterday.
Also I find the side to side transitions feel sloppy and rolly to me now, I am sure if its tire sidewall flex, or shocks that are weak, or just the OEM springs not being stiff enough.
Also I am not sure I am a fan of the RE71R for my driving style, I feel like the sidewalls are stiffer on the Z2 I have used, and the RE71R seemed to go off after three quick runs in succession of a ~56 second course.