We had an overhead bed Peugeot based Autocruise, before our current Fiat A class.
The cab used to be the coldest area of the van, probably due to the single pane windows and (as I found out) the air vents in the doors, which I taped over in an attempt to stop draughts.
Our A class has two front doors but no draughts, and the double glazed front side windows (including the door windows) must help with insulation. Our massive windscreen has an electric metal roller shutter which shades the front but could be a source of heat in the summer. I fitted net curtains to the front screen to allow light in but forms some privacy.
As a former site owner in France where we also stored vans, heat inside the vans can be a very significant problem during the hotter summer months where we used to see temps. in the mid to high 40's C.
In my experience ventilation is the most important thing to consider, that and pulling down all the reflective blinds on the Seitz (or similar) windows, when it comes to ventilation, it helps if you have an air intake located in the coolest possible place i.e. underneath the van. The other important thing to consider when parked up is to deploy the reflective cab insulation which is just as good keeping out the heat as it is the cold.
I believe the best possible form of insulation is closed cell spray foam and it makes me shudder how awfully some vans are insulated, most especially some of the professionally converted panel vans where there chintsie furnishings are on top of some of the cheapest types of insulation I have seen!
Don't think anyone is denying there is a difference, thats basic, dark colours absorb more energy. It's just how much the difference is.
What matters is how much heat energy is absorbed and how much is reflected when exposed to a given level of radiant heat.
To be valid, the results need to be in heat units (such as watts per square metre), not temperature units (such as degrees).
Mark 61and alcan,in post 12 l clearly state a 10 degree difference between a black and a white car, and l don't know wether it was farenhight or celcius .l assume that your both blokes and not ladies suffering pmt.
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