Had to laugh last night on his trip through Spain, during which he visited the CAF factory in Zaragoza and drove a Northern 331 inside the depot.
"Super smooth ride" was the classy comment (at 2km/h) - not repeated in normal service at Northern.
CAF is also having problems with its trams in various parts of the world, including Birmingham.
But the episode as a whole, including discovering his father's Civil War era records at Salamanca, was really very good.