That's that Duo Select issue which I read about when I was researching a while ago. I decided to chicken out and go for the full auto, which was obviously newer therefore more expensive, but would have given me peace of mind. Thinking back, this was a few years ago as I bought an S8 Audi instead, ran that for three years and then had an XFR for nearly a year. I still want one though but will stick with the E Class for now.
Appreciate what you're saying about "driver's lack of knowledge" though it all depends who has had it before you really.