One of the biggest things Kia keyed in on was the suspension in the Soul. Although the cars still has Macpherson struts in the front and a torsion beam for the rear, the car now has twin-tube shocks, bigger dampers, bigger bushings, and a front stablizer bar. A new steering box has also been added, along with a 28.7 percent stiffer frame. This all means that bumps matter less, turns are more responsive, and high-speeds are less noticeable (80 mph felt great).
It's an extremely comfortable ride.