being a bit of a petrolhead, I was curious about that engine and whether it really was
a diesel. In the bit of it that you could see in that half-picture, it looked rather nice. After a quick DuckGo search I established that it was a photo of a Paccar MX-13 series 6-cyl inline diesel:
(looks like a beautiful piece of engineering)
I also found I was connected with Paccar (in a manner of speaking), after reading in this potted history of the DAF brand
that Paccar - a huge American multinational - had acquired DAF and some other UK/European truck companies, including Foden
in Sandbach, Cheshire (UK). The connection is that, coincidentally, I once shared a flat in Sandbach with a bloke who, in his spare time, acted in the role of Captain in the Territorial Army (part of the UK Army Reserve) in truck engineering and maintenance, and in his day-job worked at the Foden truck factory in Sandbach.