Yes, Richard, my first reaction was an A30/35 van, though the flare of the rear wheel arch seemed too great, and there seemed to be a rib around what should be a smooth flare.
I see what Steven means: it could almost be something like a Scootacar, heading away from the camera. The tax disc on the screen, and the wing mirror, tell us it's facing the camera, and now that I look in detail, I see that just in front of the mirror stalk is a wing-top side light. I reckon it IS an Austin van, and it's the strange foreshortening of the picture that makes it look over-flared, and exaggerates the curve at the top of rear window, and the way the door seems not in line.
What looks like a sunroof, but will be a pressing in the metal, also matches the A35.
My money's on an A35 van, to which rear windows have been crudely added.