Just bought a beautiful 2006 S Convertible with only 28K miles. The exterior and front seat shows very good care, but the back seat area is frightful. The leather seats look great but the vinyl sides next to the seats and front seat backs are hideous. Badly scratched and dinged as though something was moved in an out of the area several times that was much too big for it. I've tried every vinyl cleaner and dressing out there to no avail. At this point even considering giving up and throwing on black shoe polish! And ideas? I'm a novice to detailing and learning so much from this forum.