That's a very nostalgic photo with a vast array of different period BMC vehicles, it brings back many memories, particularly the Austin Minor Van, I remember after carrying out a service on one of those, I made sure all wheels were tightened & everything was safe & left the young apprentice to re-fit the hub caps & make sure there were no oily fingerprints left anywhere on the vehicle, while I attended to the paperwork. We then went out on road test & it was customary to take the apprentice who had helped, but as we negotiated a roundabout, both left hand hub caps detached & rolled down the road. There was a heated exchange of words, some of which may have begun with the letter 'F'

but seeing the lad's embarrassment, I said if he could recover the hubcaps before anyone ran over them, nothing would be said when we returned to the garage. He did, nothing was said & he turned out to be a very competent mechanic.
The Mini Vans appear to be in their wax coating with white tape on the bumpers? I didn't realise they still had over-riders in 1968, but we live & learn.
Thanks for posting that, it brings back many happy memories.