I find my W204 handles well enough and I certainly I wouldn't want it any stiffer. It's a ride/handling compromise and for me the bias away from ride towards handling has already gone too far given out poor road surfaces. There are some cars out there that are so stiff they are really rather silly as everyday transport. The worst riding car I've ever experienced was BMW 1 series coupe on run flats. The ride was so bad that the car had to be driven slowly on moderately rough road surfaces which rather defeated the object of a sporty car.