Remember those old tv adds, that showed a VW was so air tight it would float? I’ve never owned an old Beetle, but I did own a VW Rabbit in the 1970’s, and it was really airtight too. It was hard to close the doors with the windows up, it was so airtight. Much harder that on my Corolla. Are VW’s still like that, hard to close the doors with the windows up?
But wouldn’t making a car that airtight make it hard to get good fresh air ventilation? I mean air coming in to the car through the vents under the windshield has to go out somewhere, right, in order to maintain good fresh air flow? On the Corolla, there are purposeful installed venting spots, where the rubber seal is missing, and some grooved plastic pieces are there instead, at points under the doors, in the rear fixed windows, that provide channels to allow air to flow out of the car.
So, just wondering & curious, how does (or did) VW provide good fresh air flow through the car, if it is so air-tight?