Some little boys love dinosaurs; others favor semi-trucks, or insects.
At least one whom I know loves Kraftwerk. It is pretty cute to hear him and his brothers doing their best to sing lyrics in German while we drive along.
Wir fahren, fahren, fahren
Auf der Autobahn
Vor uns liegt ein weites Tal
Die Sonne scheint mit Gliterstrahl
“We drive, drive, drive on the Autobahn. In front of us is a wide valley; the sun is shining with glittering rays.”
Their singing is punctuated by cries of, “Horses!” “Mighty Machines!” (heavy machinery) “Cows!” “Pigs!” (I don’t think we’ve seen any pigs, actually; but John persists in calling cows pigs, not from any personal animus but because he hasn’t quite worked out their proper name.)