electric mot

i think the serious bit is that any of em out there expired are now suddenly illegal despite the owner having bought em on the understanding that they didn't need an mot,VERY dubious both legally and morally.making a vehicle liable to be or do summat that it didn't have to do when new used to be illegal,law/tax changes aint allowed to be applied retrospectively and I would expect any owner that goes to court over it to win hands down,how long do you reckon before watts/amps governs your roadtax do you reckon?cos when theyre all leccy the gvmnt is gonna want its taxes back from somewhere.remember,you heard it here first........