Sandra, not too sure what you mean by the ranger is registered for commerciall use. my transit vans where all classed as commerciall vehicles by the manufacturers but they where taxed as plg or private light goods. a transit will carry a considerable amount more weight than a ford ranger and as far as i can remember you only need a tachograph if you exceed a certain weight, the smallest vehicles i know of that have a tacho fitted are 7.5 ton lorrys. having said this i did hear once of a motorcaravanner who had one of the larger type motor homes that was plated at 35 hundred weight and in order to tow his caravan with the motorhome he had to have a tacho fitted as the combined weight was over the limit. Is the ford ranger not a similar size to a shogun ? if it is many many people tow abroad each year and have no problems.