IIRC, the wagon carries a lot more weight on the rear springs though.
IMHO, what I don't like about progressive springs, is when they transition from soft to firm, it can upset the car.
Maybe the wagon's extra weight helps reduce that "hit".
But, beside spring types, and other technical discussions, I don't want to confuse bigfish3851
, as he hasn't even hit the track yet.
Let's work on the driver
first before exploring all the other avenues.
What wheels are those?
Along with the soft springs, I'm betting those wheels are the other 50% of the equation.
Stock SVT wheels have an offset of 49mm.
Those are most likely 42mm, which is pushing them closer to the fender lip.
^^^Meaning...more chance of rubbing.