I have a soft rear shock absorber and have been looking at alternative replacements, but it's raised a question. In the Bilstein Catalogue it refers to shocks for a W211 with 'a standard chassis', or one with 'sports suspension'. The question I have does an Avantgarde have 'sports suspension' as standard, or was 'sports suspension' an option that could have been specified on any W211? I have the VIN decode for my car and there's nothing in it which refers to any sort of suspension option. Hope someone can clarify.