The average caravan does not spend a great deal of time on the road. MOT wise there is not much to check...brakes,lights,bearings,hitch. If you want to tax caravans then what about horse trailers, goods trailers, in fact ALL trailers. The wear on roads caused by caravans is minimal.
but then the average time i spend on the road dont tally up to £210 quids worth of yearly road tax either so why should we all pay so much when i only do like 8 miles a day? tax everything or nothing at all simples! we all use the roads and for those pulling a trailor caravan etc they put extra strain on the car lorry pulling it causing it to use more fuel and become less economical so surely they should be charged more for slowing down all the other traffic or charge them a country wide congestion charge if you over a certain length of a standard car!