However they have facebook reviews thanking them for taking people to their PROM NIGHT. But instead of a fee, they take donations for charity. Hmmm, legal or not?

Weddings seem to have moved in from a hired Rolls or possibly a horse drawn carriage and into a much wider range of classic and/or novelty vehicles. My daughter got married three weeks ago and travelled with me from her home to the church in a seventies VW camper. Bloke who owned it seemed to do weddings as a sideline to help disburse running costs. Others no doubt have a fleet and are more on a business footing.

There's also a demand for unusual vehicles for Proms. Daughter went to hers 9 years ago in a Moggy 1000 belonging to a friend of a friend. Arrivals at the school were a village event for a few years with a turnout of a hundred plus to watch. If a wedding car owner will do it for a genuine charity donation, perhaps as a favour for a friend of a friend it seems pretty harmless.

Assuming they go directly from home to Prom and no more than a few miles then I don't think taxi enforcement would be bothered. If they go for a longer ride or a burn up the M1 or if there's profit it's a different ball game.

Having said that if there were an accident and injuries then more serious inquiries might cause problems but I suspect police would be looking for C&U offences rather than trying to prosecute breach of PH rules.