Yes, that's #19, it's been for sale for ages and things look a bit odd to me...
It was up for sale on AutoTrader in July last year
Then it 'sold' on eBay twice in early Aug (61,800 miles) first time for £8600 but didn't meet the reserve (BIN on it was £10,250), second time for £8750 (BIN of £9750)
I exchanged emails with the owner when it was up as a classified ad on eBay in May (65,500 miles). That time he declined an offer of £9000 - but then it was located in Eastbourne not Greenhithe. He said he was selling 'to scratch a 911 itch'
Up again on eBay in June (65,500 miles) and he declined an offer of £8600 (the 911-itch reason for sale didn't work so the listing said he may PX for E46 M3 or Z3M)
And now it's up on eBay again with a BIN of £9,500 but has shifted to Greenhithe, same owner but, mysteriously, according to the eBay ad has done 63,700 miles!!
I'd have thought that, if it were in good order, it would have been snapped up by now. He'd be better off selling the hard top separately for about £700 on eBay, and he could probably sell the car for £8500 without problems