Reg Number on roof: why?

[LotusOmega375D]

Spotted this the other day:



Why would an earthworks contractor's van have the registration number on the roof?

[Dr Interceptor]

So when the vans are parked in the company car park, you can look out of a high level window and see what vans are on the premises. Handy if you need a reg number to book one out.

[stormy22]

Or...as the company deals with Earthmovers, perhaps they need to see the registration of the van they are about to drive over the roof of...again for insurance purposes.

[Matt_N]

Or if they get knicked they are easily identifable from a Police helicopter.

[LocoCoco]

It's a 1000HP RWD sleeper van, the plate is there so that it's legible when the van's wheelying away from the lights.