The general rule here is that the Citroen Berlingo Multispace is M1 (a car) and that the Berlingo crew van (N1) is a van – albeit a five-seater with windows. It all depends on if the vehicle was designed t be used as a car or as a commercial vehicle – the Multispace is much plusher and doesn't have as many lashing points in the load area, whereas the Berlingo crew van has an enclosed rear. You can apply to DVLA to change the classification of a vehicle, but you'll need to prove it has been altered to meet the new classification. The process is explained here: www.gov.uk/change-vehicle-details-registration-cer...a