Not so much quietness, as rough riding. When the windows are up the car was quiet enough. One very disturbing this was that if the doors were closed and windows up and you had the radio/stereo on, you could hear the music (hardly muffled at all) outside!
The car seemed to be made out of very low-grade material. The seat covers, the body panels, the carpeting. You could hear the radio outside of the car even with doors/windows shut tight. The seatcovers never could stay lint/hair free.
It is a very rough ride, the U-Turn circle was extremely wide for such a small car. The car had absolutely no pick up at all.