I remember rake angle being introduced for the DP, but I don't remember it ever being rolled out to the earlier cars. That might explain why I've struggled so much with the SR8 since my return to iRacing.
I'd be surprised if there's much of an aero effect from rake angle on the Skippy though because the primary effect is on the underbody aero, not the wing angles. It'll have major effect on cars like the DP (where the effect is very pronounced) and Radical with big, low flat bottoms (
insert own joke here), venturi and so on, but probably not much on the Skippy with its much smaller underbody and big ride height.
It could also be my imagination.
Poll
