I am not trying to be the contrarian--just very trying, so says my better half--but I always check anything that seems a bit odd. Get on Google Earth and check out the location in the UK near the mouth of the Thames River that the author cited and you will see many, many cars but that appears to be an import or export facility. Google Earth has pretty good images from years past and the number of cars varies which tells me it could be a snapshot (duh!) of cars waiting to be moved to dealers or moved out of country.
There is a very similar car import lot on the Houston Ship Channel very near Loop 610 and you can see it as you drive south from IH 10. A casual observer might think it is a GM storage facility but actually it is a Toyota and Nissan import facility. I am not saying there is a huge conspiracy afoot but I am saying I don't the writer of the article used very good examples.
I got on the Google street view and they have 15 foot or more fences surrounding the "storage" lot.
[This message has been edited by starlightcoupe (edited 05-21-2014).]