The following is lifted straight out of LRO October 2012, page 18.
Modified Land Rovers to be Outlawed
“Modified Land Rovers are to be banned in Europe. Well, that’s if European Union gets its way, at least.
Proposals have been made to standardise tests of roadworthiness across Europe, with the plans defining the test as a verification that components of a vehicle comply with its characteristics at the time of first registration. This will mean most modified Land Rovers won’t be road legal in the EU. The document suggests that historic vehicles, manufactured at least 30 years ago, will be exempt from the ruling but only if they retain their original components, including engine. Bye-bye, Tdi conversions.
A read through the fledgling document reveals some ambiguous wording. It would appear that a Land Rover can be modified, so long as it uses Type Approved parts, and accessories that were available on the original options list. So there’s no need to panic just yet...”
From the above article, it would still appear as though there might be an issue for many.