Private ambulance - Class 4 or Class 7?

Not a goods vehicle so class 4. Unless its one of those courier ambulances with 16 seats

whats the the primary use of the vehicle ?   it could be full of  tools just cos its got ambulance down the side, need to ask questions

For it to be an ambulance it has to constructed and used as an ambulance,for obvious reasons,a van which has just been adapted as an ambulance wouldn't class it as an ambulance, its sounds like its just still a van.
I would say its class 7

still need to ask presenter of vehicle in some situations to find out whats its used for, if paddy the builder turns up for his mot on his transit and puts ambulance stickers down the side its not going  to be tested as class 4 . but i no of some undertackers vans with ambulance down the sides empty inside used for picking up the stiffs class 4

Ah that alters things a bit.

How many seats?

Yep agreed if not operational. Most likely class 7

Class 7

Its a van. it's class 7

If it was an ambulance the question would have said, "an ambulance with the word ambulance on the side"

class 7