Here in France, if you see something like the above in your rear-view mirror, you slow down PRONTO.
Yesterday Wills drove 200 Kms north to buy loads of building materials, and discovered that this is annoyingly true.
The problem with owning a deep blue Renault Trafic van is that everyone thinks that you are Les Gendarmes, and the flow of traffic suddenly slows to an escargot's pace.
I did suggest that he buys a blue flashing light for the top, then other drivers might simply give way and let him overtake at a normal speed. Until then it looks like he's going to have to become an exemplary driver; of course he could always issue a few hefty 'on the spot' fines to those who are not.
He recently bought the vehicle in Berlin, imported it here, and it now has a French number plate.