You are so right, clubs would work in the cabrio, but I don't play, although I did move a potted tomato plant that was 6 foot tall by putting the top down and setting it in the front seat, course on paper and driving very slowly.
I do have a bike rack I put on the back, using the tow hook holes and a thule bike rack and I've a plan to make a top rack by putting thule supports on an extra pair of removable top guides I have from my totalled Brabus, also silver. All this works and look pretty trick and even like it was stock from the begining.