Just off the M27 near J7 yesterday morning.
A black or very dark green Land Rover with sirens and blue lights. On top were two or three short ladders the same colour as the vehicle. The Land Rover seemed to be a bit longer at the back behind the rear axle than an ordinary LR. Wheelbase possible normal length. There was no wording or marking at all on the LHS or back. There were no other emergency vehicles around.
Anyone seen one like this? The only thing I could find was this old post, but strangely from the same region!