What are you looking for on the S211 specifically?
I assume you are able to tell from looking at the car that it doesn't have what you want. To my earlier point, don't trust anything traders write in their adds for this sort of thing as they usually don't have a clue. And as Ellen Ripley would no doubt recommend, "A datacard pulled from the VIN will confirm the options. It's the only way to be sure".
On the one I linked, it does looks like it has (from the limited, low resolution photos) alloys in good condition (no kerbing requiring refurb or knackering suspension components or geometry), good quality (Conti?) tyres, and brake calipers in fine condition. The leather also looks very good and clean, with only very minor scuffing to driver's bolster that could be fixed easily. Not huge in themselves, but I take as some signs of a careful owner. If I'm looking for a sentimentally precious car, butchered, gouged alloys and different varieties of the cheapest budget tyres on all for corners has me walking away. At this age and basically super car power, condition is everything, because otherwise it's possible to miss the fact it's teetering over the edge of an enormous money pit (in my mind, I'm having visions of something like the end of the Italian Job film, but with an E63 instead of a bus).
To be clear, I'm not pushing the car I linked in anyway. Just trying to help give you some food for thought on your search. I was 'only' looking for a W211 E320 CDI for 6 months, and what I wanted only turned up once and I missed it because I didn't jump on it in under 24 hours (I was arranged to view 36 hours after advertising!).
There's also the one in Bolton. Only been advertised a few days and no photos (£13,495). I take the no photos as a good head start because it means if I were looking I might be able to get the early first scoop on the car by making enquiries. I am going to guess that a lot of people would wait until photos go up?
