BMW Soundtree – driving pleasure creates the perfect Christmas tree. For Christmas, BMW came up with the perfect gift for their customers and partners: BMW Soundtrees – these are Christmas trees created by the cars themselves. That’s how it worked: the sound graphs of new BMW models were first recorded in an audio studio and then rotated 90°. Following that, the visitors of www.soundtree.ch were able to create their own BMW Soundtrees with the help of a virtual accelerator and share their results via social media. Beyond, rapid prototyping enabled the trees to be 3D printed, set up at the showrooms or given to BMW VIP customers.