These are the official requirements for a Motor Caravan...
www.gov.uk
This situation is the construct of the DVLA.
So if I wanted to change my V5 to state 'Motor Caravan' (Which I Don't) the fact that I didn't have Decals could tip the scales! Really?!
I get that everyone has a different opinion of what is a Motor Caravan or MPV. This government
'Guidance' is for the hoops that the DVLA want you to jump through when you want to change D3 on your V5 to state 'Motor Caravan' which in turn would change it's Taxation Class. The Vehicles Taxation Class or Body Type on the V5 do not govern its speed limits.
The DVLA’s own website it states;
“The body type does not affect the insurance category of the vehicle, or have any effect on speed limits or other legislative requirements. It is
only used for establishing vehicle appearance and identification.”
&;
“It is important to remember that even if the vehicle’s body type is not changed to ‘motor caravan’, the vehicle can still be used for this purpose as long as
the keeper is satisfied the converted vehicle meets the required internal features for motor caravans”. The definition of which is in the Motor Vehicles Type Approval Great Britain Regulations 1979 and Road Traffic Act 1986.
(May 2020). Helen Gretch, the department of transport policy advisor on freight, vehicle speeds, driver hours and enforcement confirmed that “the body type on the V5 registration form is not connected to speed limits”
Ref: Road Traffic
Act 1986. (Not Guidance).
“motor caravan” has the same meaning as in Regulation 2(1) of the motor vehicles type approval great Britain regulations 1979 which states;
“a motor vehicle which is constructed or
adapted for the carriage of passengers and their effects and which contains as permanently installed equipment, the facilities which are reasonably necessary to provide mobile living accommodation for its users”
Ref: Road Traffic
Act 1986.
Dual Purpose Vehicle :-
a vehicle constructed or
adapted for the carriage both of passengers and of goods or burden of any description, being a vehicle of which the unladen weight does not exceed 2040 kg
be permanently fitted with at least one row of transverse seats (fixed or folding) for two or more passengers and those seats must be properly sprung or cushioned and provided with upholstered back-rests, attached either to the seats or to a side or the floor of the vehicle; and
be lit on each side and at the rear by a window or windows of glass or other transparent material having an area or aggregate area of not less than 1850 square centimetres on each side and not less than 770 square centimetres at the rear;
The point of all of this was to give people some info that I believe correct (and I may not be) to act on if they wish to. I believe you should not blindly take the NIP or the offer of a Speed Awareness Course if you do not believe you were speeding. Don't get me wrong it would have been a lot less hassle just to roll over and do the speed awareness course, take the £100 fine and the potential insurance hike.