I fail to see what you mean with body roll on the photos![]()
Take another look then, on the Civic it's blatantly obvious; use the wheel arches as reference points.
Hmmmm, do you mean the car tilting to the left?
If so it could be from track inclination. Have you tried in some other track?
Try taking the photos of the Hondas in the same track & place as the Subaru.
Or (even though it doesn't make much sense) maybe it's the same thing that happens to the karts when you turn the steering wheel. They tilt to the oposite side of the direction you turn the wheel to.
I'm sorry but that's not a bug at all.
Maybe you don't notice on your car because you can't turn the steering lock to lock fast enough. But every car has this, that's for sure.
A stationary car does tilt when steering because of the suspension geometry. If it didn't exist, a car wouldn't self steer back into center.