ROS and PPW have with great care, a manufacturing method for the trim ring for the BMW Mini optimized, which includes the central instrument panel and the center air vents. A process step in which it is especially in a reproducible quality and precision, the connection of the base support with the trim ring. Depending on the version and interior paint a piano black finish or chrome is used. Under the given requirements, it was not possible to employ a mechanical process such as welding, ultrasonic welding reliably. The choice was therefore on the two-phase thermal rivets.