Garry> I think the original Question has been answered.
ps: So long as one is abroad, one is subject to the laws of the host country not of the home country. After all, in France French speed limits apply equally to UK visitors and you pay French VAT rates on purchases, not UK ones. Only if the country one is visiting requires foreign vehicles to be taxed (which they don't because they have nothing to gain by doing so) would there be any mandatory requirement to have the car raxed.I can't see how the DVLA can put out a statement like that. It seems to me that all they are trying to do is to prevent loss of income through tax avoidance. It it noteworthy that they say: "Any vehicle that is in use abroad should be properly registered and licensed in the home country" and do not use the word must.
Once one is out of the country one is effectively out of reach of the taxman back home. After all, that's why there are so many off-shore companies.