how can you tell the lights and wheels and other bits are not correct?
The lights are standard halogen reflector headlights. Xenons have projectors.
The wheels are in my previous post.
Reading through the spec, only the leather (which includes heated seats), cruise control and the touch screen radio are the only optional extras. All the rest are standard features and usual dealer blurb that they use to make the car seem more than it is. That doesn't mean there's anything wrong with it, other than the cheap nasty wheels, it's another case of the dealer not knowing anything about the car he's selling.
Edit, I've just noticed on my picture of the wheels that the rear bumper doesn't line up with the wheel arch. It took a while to get mine lined up properly when we re-fitted it have had it painted the other week. That leads me to believe that bumper has been off too. Why? Make sure you have a really good look round it. If it's had paint, silver is a bugger to match, but might not show up at this dull time of year.