Of all German cars I have recently owned (Cayenne/Boxster/c320)...The one and only thing that seems to be an issue is the AC....Maybe because in Germany they dont need the AC that much?? Anyway, they AC units dont seem to be very LINEAR ...I can never seem to get the air to blow directly where I need it to ...Anyway, the pros out-way the cons so I am HAPPY and wont own anything but German vehicles!