Damn this car looks so good! i'm proud to see that there are people that take care of they're w210's :') and ps: i think the front would get that special avantgarde look back if you would add the chrome strip on the bumper, like on the sides.
Technical question. What tire size you have in front and back? Where did you put air tank? In trunk or under the seat? What sistancers are you using? I am thinking to put up 40mm distancers because I have pretty wide rims 19/235/35 and that is too much. In worst case I have to get me new. If possible send me pics with solution you made for air suspension.