Direct mount, easy to install on my R53. Looks well made and packaged. The only problem I have is that they are too strong. If you open the sunroof and let it open freely, the car will shake almost violently. And when you're closing the sunroof, don't keep your hands busy because the intense pressure means you'll need at least one free hand to close the license plate. Closing it anywhere other than the license plate is sure to cause a dent in the bodywork.