Thanks for the pointers and encouragement. I've seen that silver one advertised and it looks good; but is fsi & Oss stacking the odds against me! As for the E280, It's a straight 6 petrol... So anything will be an improvement in economy. I'd noticed the steering wheel change and wheel swap on the one I originally mentioned. Seems someone might be a bit embarrassed to own up!
Just some information points you may not be aware of.
Regardless of A2 variant, it is extremely likely that any OSS wil be broken (BSS!) - a result of elements of poor design and maintenance, unless previously owned by an enthusiast. This manifests itself by failing to open or even in the rare case it does, failing to open smoothly or fully. This glut of BSS has arisen by the high cost of repairs deterring owners from a repair; Audi usually want to replace the entire sunroof at a cost I do not want to think about (£2k ???). It would not surprise me if Audi would now decline to repair and there has been little option elsewhere now that A2 Cars is no more, (WOM?). Good news, one of our members Klynie by fixing his own roof has developed expertise he is generously. willing to share by offerring a repair service with his son to members at a much more affordable cost to the average pocket. Information elsewhere on here. Lastly even BSS is considered to have merit making for a lighter cabin if that appeals.
Another plus point on the silver A2 is that it has a so called double din dash which makes the upgrading to include a screen, as in the black car, more straight forward, not cheap (£300? anybody) but it is normally what most owners want. [Most A2's are so called single din dash and and require a lot more work and cost to upgrade to a screen as per black car.]
Most A2's have badly worn climate buttons but these are simple and cheap (£25) to replace with much more durable so called hard touch buttons from earlier Audis, eg. A4 B5 variant (eBay), same for radio buttons.
As has been said above most open market A2's will require work, pity about the owner of the black car not coming forward but it struck me as they have sold their A2 they might have moved on and little reason to drop back in on this forum.
Apologies if you know all this stuff already but thought it might help if you don't.
Andy