I use a pair of headphones to drive, and ive noticed while im driving in cockpit that there's a whooshing, wind/air movement sound thats almost overwhelming the other sounds. From in the cockpit this should not be heard. Also it just gives me a headache . The Megane is what I mostly drive, im not sure about the other cars. I'm using a pair of Sennheiser headphones but really any decent headphones should give you a good example of it.