In the mid 60's I bought a used '62 beetle. It had a sun roof and at first it was great fun to drive. But in time I started noticing its many faults in design. Its light front end made quick turns on loose footing a bit tricky. And it was noisy because of the engine blower. The French 2cv Citroen had the right idea. If you must use an air-cooled engine, mount it in front and drive the front wheels.
That first winter taught me how rubbish the heater-defroster was. It barely put out any heat while driving around town. And, I learned just how bad winds affect these cars. It blows them all over the road, or off it.
In my opinion, these cars are not something one would expect of German engineering.