I have been offered a Dynamic in black / black / 20″ with approx. 50000 km. Looks like from the showroom, there is not even a rockfall to see. Runs completely quiet and clean. Price a little over 40K. Since I have read a lot here in the forum about 9-course problems my question: you who are experienced with RREs, is there any reason not to buy the car with the 6-course vending machine? I realize that the 9 course is the latest variant, but that makes itself pre is also immediately noticeable in the purchase price with 5-7K.