What do you want? Drive it around town/highway? or Daily driver and now and then an autocross and on track driving school?

On my 190E I'm using Koni adjustables with Eibach springs in the front with a 1.25" sway bar and Hyperco springs and perch kits in the rear and Z-rated tires. The ride is firm, not harsh, but firm enough that a passenger cannot read a book or sip from a coffee mug.

On another MB I use Bilstien shocks, H-rated tires, added a stiffer sway bar, and 1 coil shorter springs in front. I eliminated most of the body roll and I can read a book and sip coffee.