I have had the hardest time finding wheels for my 07' W203 C230 sport. It has larger AMG calipers that created a problem. I finally found some with enough backspace to clear. Settled on 19" x 8.5 in the front and 9.5 in the back with low profile tires 235/35/19 & 275/30/19. I'm very happy with the result.

New headlights finished up the refreshed look.

 

The car looks very nice and should ride smooth with those wheels.
Happy motoring