I just bought my 06 C230 from a local MB dealer and my car seams to drive a bit stiffer than all the other C230's Ive test drove. Its seams like the car is lacking powersteering fluid or somthing and ready to go out. So I brought my car in for service and they told me thatsome C230's have an upgraged super sensitivity steering and my car didn't have that upgrade. Just wondering if there is a such thing and if this is really true????