I just noticed that as well cas. Something doesn't add up there! The callipers are red as well - the diesel callipers, whilst being the upgrade brembo type, are actually grey. So it's either a V6, or an 'S' which would tie in with the 'S' wheels they have. Might be worth a call about the 'S' steering wheel you were after?! It's an 08 plate as well so the seats should be the later style - but probably had it when the airbags went off.
The prices seem high to me though - £400 for the front two calipers alone? - discs extra!!
The 'S' wheels at £1000 as well!! - there's been a few sets on ebay for more like £600.