Designo is an individualization option on all Mercedes (A and B-Class as well) that allows customers to individualize and style their Mercedes to their personal tastes. Customers can select a wide range of different exterior colors or various colored leathers for the interior. They can have wood replaced with brushed aluminum or a different wood for example.

Here's an example of Designo on the German MB website: http://www.mercedes-benz.de/content/...o.html#mainnav