there was a legalese change to driver licensing after someone succesfully challenged that a PSV wasn't required if there were no fare paying passengers eg shopper buses run by supermarkets and some school owned buses.
the change was to PCV passenger carrying vehicle rather than public service vehicle.
and royal mail do have POSTbuses , but generally in the Ahole of nowhere like the highlands , although Swindon does fall into the Ahole of nowhere category![]()
Certain versions of the van in question can have upto nine passenger seats and therefore can be classed as bus, but I can see it does not, it has five passenger seats at most.
Swindon is generally regarded as the Ahole of Wiltshire as it ruins all the crime statistics and is like most towns full of mobile phone shops, nail salons and generic shops.
