Thanks for you replies. It seems like cars with the sparewheel mounted on the back have significant less dust in the cabin.
I think it is because of the „Wind Break“. Nevertheless plus six don‘t have spare wheels an I don‘t want a spare Wheel.
By the way it is also a matter of how you drive the car. Much Full-throttle and speed increases the problem. In my case you can flood the cabin with massive dust in about 50 km. I could imagine that a mounted Luggage-Rack with luggage on it could help to break the sucking air into the cabin. Any thoughts?

Last edited by Fuel; 31/05/26 10:56 AM.