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 with via social media. Beyond, rapid prototyping enabled the trees to be 3D printed, set up at the showrooms or given to BMW VIP customers.