Having seen what happened on a recent Heathrow thread I just knew that photo of the cars in the street would invite the old car-spotting crowd !
BTW the bus looks like an Albion Venturer (built in Glasgow).
I thought another interesting aspect of the article was the description of the meals along the way, notably the meal at the terminal in London before departure. What plain food out grandparents "enjoyed" at that time, and for the time it probably cost a bomb.