Fred:
I think that most second hand buyers who aren't enthusiasts will not know what is standard and what is optional - especially on a car so well equipped as standard. Everyone expects rear parking sensors, aircon, auto lights/wipers and a multifunction steering wheel at this size/age of car. Wheels, sunroof and Leather are highly visible options, things like rear cam, keyless and DCC people are generally going to be unaware of if they don't see it being shouted about by the seller. Many people will probably think stuff like Xenons, climate control, rear dimming mirror, folding mirrors are options they've scored for.