Dear Porsche drivers, since yesterday I have a Panamera 4 E-Hybrid Sport Turismo from the local PZ to the test drive. Actually, my next one was to become an E53 AMG T-model. But the Porsche appeals to me both emotionally and financially – because of the advantage of the 0.5% service car tax for me as a self-employed person. The first 250km since yesterday were already fascinating. Only one thing bothers me (the test car stands on 19″ Michelin winter tyres): From about 150 km/h the (driver) -)Wind noise on the front seats is annoyingly loud for a car of this class. There is even the Mercedes CLA 200 Shooting Brake my wife above 150 km/h to 200 quieter in the wind noise. I also drove in the Porsche some motorway kilometers on the back seat and found there above all the rolling noise from the rear axle very loud. In my experience the Michelin are very quiet winter tires. Is this a well-known phenomenon? And above all: Brings the order optio n VW6 “Noise and heat protection glazing including privacy glazing” something? I would hope that this “noise protection glazing” will reduce wind noise?! For your experience I would be grateful! Thank you David