The current building, which stands directly outside the main gate of the Daimler factory in Stuttgart, was designed by UN Studio. It is based on a unique cloverleaf concept using three overlapping circles with the center removed to form a triangular atrium recalling the shape of a Wankel engine. The building was completed and opened on 19 May 2006. Architecture and exhibition concept are closely interwoven, as exhibition designer HG Merz had already been commissioned before the architecture competition in 2001.