I nearly bought a '55 plate 5dr, 27k with DSG, up at £16,850 at my local main dealer, I reckon they would have done a deal at just over £16k. If it had had a sunroof and highline, I would have bought it, but not really in the market just yet.
Suggests to me that as yours is a 3dr manual, with a few extras, £17k is prob about the money.