I'd figure the RS was worse than .36 CD.
Also, there is no good test to tell you how a car will handle without actually driving it yourself. The skidpad is nice because its fairly accurate. Its not effected by driver error that much. Its bad because it only takes into account the effects of having all the weight of the car being thrown to one side. The slalom is nice because it takes into account the side to side weight transfer that you'd encounter in an actual driving experience. Its bad because its heavily dependent on the drivers skill. I mean who do you think would pull a higher slalom speed in the WRX, some car magazine editor or Richard Burns. Then, any number they come up with won't be an accurate representation of how well you yourself could do.
Oh and, no I don't know what the slalom or skidpad numbers are for the new WRX, sorry.