I notice that this car was auctioned prior to my above posting, on 6th April, for £11,500, by Charterhouse Auction.
Meanwhile, there is a white 1953 Saloon for sale in Germany. I think that this is the same one sold in the UK in recent years. Then (with a new reg. number) was for sale for a long period by a classic car trader in the Netherlands (they did a Youtube advert at the time). Now with another reg. number, it's available again:
http://www.carandclassic.co.uk/car/C506260 There can't be many cars that come with spare head-gaskets as a major selling point! Looks nice though.