I had a roof rack on my car and hated it when I bought it. Come to find out the dealer does not sell the caps that are one time use if you do have a roof rack. I designed my own and would like to help fellow L322 owners if they need a full set or spares. They are 3d printed and press right in. For US it is $18 plus shipping. This comes with a set of 6 and if any break or do not fit I will work with you right away. Below are some pictures of what they look like on my car. My car is a 2008 Supercharged and I assume most years will fit. To ensure a perfect fit, comment a picture of the insert and I can verify.